屏障的英文说呢范文

关于贸易壁垒英语作文初一

Trade barriers are measures imposed by governments to protect domestic industries from foreign competition.They come in various forms,including tariffs,quotas,and nontariff barriers.Heres a detailed composition on trade barriers suitable for a junior high school level:Title:Understanding Trade BarriersIntroduction:In the global economy,trade barriers are a common phenomenon.They are implemented by governments to shield their local industries from the intense competition posed by international markets.These barriers can be both beneficial and detrimental,depending on the perspective from which they are viewed.Tariffs:Tariffs are taxes imposed on imported goods,making them more expensive for consumers.This,in turn,encourages consumers to buy domestically produced goods. Tariffs can protect local industries from being overwhelmed by cheaper foreign alternatives,thus preserving jobs and supporting the domestic economy.Quotas:Quotas are limitations on the quantity of a particular product that can be imported into a country within a specific time frame.By restricting the amount of foreign goods,quotas protect domestic producers from being flooded by an excess of imports,which could lead to the collapse of local businesses.Nontariff Barriers:Nontariff barriers encompass a wide range of measures that do not involve direct taxes or quotas.These can include regulations,standards,and licensing requirements that make it more difficult for foreign goods to enter the market.While these barriers can protect consumers from potentially harmful products,they can also be used to unfairly discriminate against foreign goods.Positive Aspects of Trade Barriers:1.Job Protection:By supporting local industries,trade barriers can help preserve jobs and maintain employment levels within the country.2.Industry Development:They can provide a nurturing environment for domestic industries to grow and innovate without the pressure of immediate foreign competition.3.National Security:In some cases,trade barriers can be used to protect strategic industries that are vital to national security.Negative Aspects of Trade Barriers:1.Increased Prices:Tariffs and quotas can lead to higher prices for consumers,as the cost of imported goods increases.2.Limited Choices:Consumers may have fewer options to choose from,as the variety of goods available in the market is reduced.3.Strained International Relations:Trade barriers can lead to trade wars and strained relations between countries,as they may retaliate with their own barriers. Conclusion:While trade barriers can offer shortterm protection to domestic industries,they are not a sustainable solution for longterm economic growth.Encouraging fair competition and fostering innovation within industries can lead to more robust and competitive economies. It is essential for governments to strike a balance between protecting their economies and promoting international trade for mutual benefit.Recommendations:1.Gradual Reduction:Governments should consider gradually reducing trade barriers to allow for a smoother transition to a more open market.2.International Cooperation:Working with international partners to establish fair trade agreements can help minimize the negative impacts of trade barriers.3.Domestic Industry Support:Instead of relying solely on trade barriers,governments should invest in education,research,and development to strengthen domestic industries. Understanding trade barriers is crucial for students as it helps them grasp the complexities of international trade and the role of government policies in shaping economic outcomes.。

皮肤的屏障作用英文文献

Moisturization and skin barrier functionABSTRACT: Over the past decade，great progress has been made toward elucidating the structure and function of the stratum corneum (SC),the outermost layer of the epidermis. SC cells (corneocytes) protect against desiccation and environmental by the SC is largely dependent on several factors. First, intercellular lamellar lipids, organized predominantly in an orthorhombic gel phase, provide an effective barrier to the passage of water through the tissue. Secondly, the diffusion path length also retards water loss, since water must traverse the tortuous path created by the SC layers and corneocyte envelopes. Thirdly, and equally important, is natural moisturizing factor (NMF), a complex mixture of low-molecular-weight, water-soluble compounds first formed within thee corneocytes by degradation of the histidine-rich protein known as filaggrin. Each maturation step leading to the formation of an effective moisture barrier－including corneocyte strengthening, lipid processing, and NMF generation－is influenced by the level of SC hydration. These processes, as well as the final step of corneodesmolysis that mediates exfoliations, are often disturbed upon environmental challenge, resulting in dry, flaky skin conditions. The present paper reviews our current understanding of the biology of the SC, particularly its homeostatic mechanisms of hydration.Keywords: corneocyte, corneodesmolysis, filaggrin, natural moisturizing factor, stratum corneum.IntroductionFor humans to survive in a terrestrial environment, the loss of water from the skin must be carefully regulated by the epidermis, a function dependent on the complex nature of its outer layer, the stratum corneum (SC) (1)。

皮肤的屏障作用英文文献

Moisturization and skin barrier functionABSTRACT: Over the past decade，great progress has been made toward elucidating the structure and function of the stratum corneum (SC),the outermost layer of the epidermis. SC cells (corneocytes) protect against desiccation and environmental by the SC is largely dependent on several factors. First, intercellular lamellar lipids, organized predominantly in an orthorhombic gel phase, provide an effective barrier to the passage of water through the tissue. Secondly, the diffusion path length also retards water loss, since water must traverse the tortuous path created by the SC layers and corneocyte envelopes. Thirdly, and equally important, is natural moisturizing factor (NMF), a complex mixture of low-molecular-weight, water-soluble compounds first formed within thee corneocytes by degradation of the histidine-rich protein known as filaggrin. Each maturation step leading to the formation of an effective moisture barrier－including corneocyte strengthening, lipid processing, and NMF generation－is influenced by the level of SC hydration. These processes, as well as the final step of corneodesmolysis that mediates exfoliations, are often disturbed upon environmental challenge, resulting in dry, flaky skin conditions. The present paper reviews our current understanding of the biology of the SC, particularly its homeostatic mechanisms of hydration.Keywords: corneocyte, corneodesmolysis, filaggrin, natural moisturizing factor, stratum corneum.IntroductionFor humans to survive in a terrestrial environment, the loss of water from the skin must be carefully regulated by the epidermis, a function dependent on the complex nature of its outer layer, the stratum corneum (SC) (1)。

那扇门成了我无法打破的屏障作文

那扇门成了我无法打破的屏障作文英文回答：The door became an insurmountable barrier for me. It stood there, solid and unyielding, mocking my efforts to break through. No matter how hard I tried, it remained shut, refusing to let me pass.I tried everything I could think of. I pushed, I pulled, I kicked, but it was as if the door was glued shut. It seemed to have a mind of its own, determined to keep me on the other side. It was like hitting a brick wall, onlyworse because I couldn't see what was on the other side.Days turned into weeks, and weeks turned into months. I became obsessed with the door, spending every waking moment trying to figure out how to break through. I sought advice from friends, read books on unlocking doors, and even consulted a locksmith. But nothing worked.As time went on, I began to realize that the door was not a physical barrier, but a metaphorical one. It represented all the obstacles and challenges in my lifethat I couldn't overcome. It symbolized my fears, doubts, and insecurities that held me back from pursuing my dreams.I was trapped in my own self-imposed prison, unable to break free. The door became a constant reminder of my limitations and failures. It whispered in my ear, "Youcan't do it. You're not good enough. Give up."But one day, something changed. I woke up with a renewed sense of determination. I looked at the door with fresh eyes and realized that I had been approaching it all wrong. Instead of trying to force my way through, I neededto find the key.I started by examining the door closely, searching for any clues or hints. And that's when I noticed a small keyhole. It had been there all along, hidden in plain sight.I felt a surge of hope and excitement. Maybe, just maybe, this was the key to unlocking the door.I searched high and low for the key that would fit the keyhole. I tried different keys, turning them in the lock, hoping for a click. And finally, after countless attempts,I found the right one. With a twist of the wrist, the door swung open, revealing a world of possibilities on the other side.中文回答：那扇门成了我无法打破的屏障。

environment作文英文

environment作文英文The environment is something that affects us all. It's not just about the trees and the animals, but also aboutthe air we breathe and the water we drink. We need to take care of the environment because it's where we live, and if we don't take care of it, it won't take care of us.The environment provides us with so many things that we often take for granted. The food we eat, the water we drink, the air we breathe all of these things come from the environment. If we don't take care of the environment, we won't have these things anymore.There are so many things that we can do to help the environment. We can recycle, use less plastic, and try to use less energy. These small changes can make a big difference in the long run. It's important for each of usto do our part to take care of the environment.It's not just about what we can do as individuals, butalso what governments and businesses can do to help the environment. They can create laws and regulations to protect the environment, and they can also invest in renewable energy and sustainable practices.The environment is something that we all need to take care of. It's not just about the present, but also about the future. If we want to have a healthy planet for future generations, we need to start taking care of the environment now.。

结构精巧英语作文模板

结构精巧英语作文模板## 英文回答：An Ingenious Structure: Unraveling the Architectural Masterpiece。

Architecture, as a form of art, has the ability to evoke emotions, inspire awe, and leave an indelible mark on the human psyche. One such masterpiece is the structure of an edifice, an intricate symphony of design and engineering that defines the very essence of architecture.1. Conceptualization: The Genesis of an Idea。

The inception of any structure begins with a concept, a vision born from the architect's mind. This concept is shaped by various factors, including the purpose of the structure, the surrounding environment, and the client's aspirations. The architect meticulously considers these elements to create a design that harmoniously blendsaesthetics and functionality.2. Structural Framework: The Framework of Stability。

血脑屏障

血脑屏障血脑屏障英文名称：blood brain barrier定义：机体参与固有免疫的内部屏障之一，由介于血循环与脑实质间的软脑膜、脉络丛的脑毛细血管壁和包于壁外的胶质膜所组成，能阻挡病原生物和其他大分子物质由血循环进入脑组织和脑室。

blood brain barrier；血脑屏障是指脑毛细血管阻止某些物质（多半是有害的）由血液进入脑组织的结构。

血液中多种溶质从脑毛细血管进入脑组织，有难有易；有些很快通过，有些较慢，有些则完全不能通过，这种有选择性的通透现象使人们设想可能有限制溶质透过的某种结构存在，这种结构可使脑组织少受甚至不受循环血液中有害物质的损害，从而保持脑组织内环境的基本稳定，对维持中枢神经系统正常生理状态具有重要的生物学意义。

血脑屏障的结构与其他组织器官的毛细血管相比，脑毛细血管及其邻近地区在结构上确有一些明显的特点（正常情况下）：①脑毛细血管缺少一般毛细血管所具有的孔，或者这些孔既少且小。

内皮细胞彼此重叠覆盖，而且连接紧密，能有效地阻止大分子物质从内皮细胞连接处通过。

②内皮细胞还被一层连续不断的基底膜包围着。

③基底膜之外更有许多星形胶质细胞的血管周足（终足）把脑毛细血管约85％的表面包围起来。

这就形成了脑毛细血管的多层膜性结构，构成了脑组织的防护性屏障。

在病理情况下，如血管性脑水肿时，内皮细胞间的紧密粘合处开放，由于内皮细胞肿胀重叠部分消失，很多大分子物质可随血浆滤液渗出毛细血管，这会破坏脑组织内环境的稳定，造成严重后果。

血脑屏障现象的发现20世纪初发现，给动物静脉注射苯丙胺后，此药可以分布到全身的组织器官，唯独脑组织没有它的踪迹。

注射台盼蓝（锥虫蓝）涂料以后，全身组织都着色，而脑和脊髓则不着色。

以后陆续发现很多药物和染料注入动物体后，都有类似的分布情况。

这些事实都启示人们想到有保护脑组织的“屏障”存在。

向鸡胚注入谷氨酸后，发现谷氨酸能迅速进入鸡胚的脑组织，但在成年鸡脑中则很难进入。

写大屏障森林公园,英语作文

写大屏障森林公园,英语作文英文回答：The Great Barrier Reef.The Great Barrier Reef is the largest coral reef system in the world, stretching over 2,300 kilometers (1,400 miles) along the coast of Queensland, Australia. It is made up of over 2,900 individual reefs and 900 islands, and is home to an incredible diversity of marine life.The Great Barrier Reef is a UNESCO World Heritage Site, and is one of the most popular tourist destinations in Australia. Visitors can snorkel and dive in the crystal-clear waters, swim with dolphins and turtles, and explore the islands and beaches.How was the Great Barrier Reef formed?The Great Barrier Reef began forming about 25 millionyears ago, when corals began to grow on top of a submerged plateau. Over time, the corals built up on top of each other, eventually forming the vast reef system that we see today.What is the Great Barrier Reef made of?The Great Barrier Reef is made up of a variety of different types of corals, including hard corals, soft corals, and fire corals. Corals are tiny marine animalsthat build their homes out of calcium carbonate. The calcium carbonate is extracted from the seawater, and is used to build the coral's skeleton.What are the benefits of the Great Barrier Reef?The Great Barrier Reef provides a number of benefits to the environment and to humans. The reef:Protects the shoreline from erosion. The reef acts as a natural breakwater, absorbing the energy of waves and preventing them from eroding the coastline.Provides a habitat for marine life. The reef is hometo a vast array of marine life, including fish, corals, mollusks, and crustaceans.Supports the tourism industry. The reef is a major tourist destination, generating billions of dollars in revenue each year.Provides scientific research opportunities. The reefis a valuable resource for scientists, who study the reef's ecology and climate change.What are the threats to the Great Barrier Reef?The Great Barrier Reef is facing a number of threats, including:Climate change. Climate change is causing the ocean to become warmer and more acidic, which is damaging the corals.Pollution. Pollution from land-based sources, such asagricultural runoff and sewage, can enter the ocean and harm the reef.Overfishing. Overfishing can reduce the number of fish that live on the reef, which can disrupt the ecosystem.Tourism. Unsustainable tourism can damage the reef, such as by breaking corals or disturbing marine life.What is being done to protect the Great Barrier Reef?There are a number of things that are being done to protect the Great Barrier Reef, including:Establishing marine protected areas. Marine protected areas are areas of the ocean where fishing and other human activities are restricted. This helps to protect the reef from overfishing and other threats.Reducing pollution. Governments and organizations are working to reduce pollution from land-based sources. This includes installing sewage treatment plants and improvingagricultural practices.Educating the public. Educating the public about the importance of the reef and the threats it faces isessential for its long-term protection.中文回答：大堡礁。

屏蔽力英语作文 800 字

屏蔽力英语作文 800 字Shielding Radiation: A Comprehensive Guide.Radiation, an inherent part of our natural environment, emanates from various sources such as the sun, cosmic rays, and radioactive elements found in the earth's crust. While essential for certain biological processes, excessive radiation exposure can pose significant health risks. To mitigate these risks, shielding mechanisms play a crucial role in attenuating radiation and protecting individuals from its harmful effects.Shielding materials, characterized by their ability to absorb or scatter radiation, are employed in a diverse array of applications, ranging from medical imaging and nuclear power plants to space exploration and radiation therapy. Understanding the principles and effectiveness of shielding materials is paramount for ensuring optimal protection against radiation hazards.When radiation interacts with matter, it undergoes various processes, including absorption, scattering, and reflection. Absorption, the most significant process in shielding, involves the transfer of radiation energy to the atoms of the shielding material. This energy is then converted into other forms, such as heat or secondary radiation. Scattering, on the other hand, deflectsradiation from its original path, reducing its intensity and potentially redirecting it towards other areas.The effectiveness of a shielding material is determined by several factors, including its density, atomic number, and thickness. Density, a measure of the mass per unit volume, influences the amount of material available to interact with radiation. Higher density materials, with more atoms per unit volume, provide greater absorption and scattering capabilities.Atomic number, representing the number of protons in an atom's nucleus, also plays a crucial role. Elements with higher atomic numbers exhibit stronger interactions with radiation, making them more effective shielding materials.This is because the positively charged nucleus attracts and interacts more effectively with the charged particles and photons constituting radiation.Thickness, another critical factor, determines the amount of material that radiation must penetrate before being attenuated. Thicker shielding materials provide increased absorption and scattering, reducing the intensity of transmitted radiation. However, it is important to consider the practical limitations and costs associatedwith increasing thickness.Lead, with its high density (11.34 g/cm³) and atomic number (82), is widely recognized as an effective shielding material. It is commonly used in radiation protection applications, such as lead-lined walls in X-ray rooms and lead aprons worn by medical personnel. However, lead's toxicity and relatively high cost have prompted the exploration of alternative shielding materials.Concrete, a composite material composed of cement, sand, gravel, and water, offers a cost-effective alternative tolead. Its high density (2.3 g/cm³) and substantial thickness in typical construction applications contributeto its shielding effectiveness. Concrete is commonly usedin the construction of radiation bunkers and shielding barriers in nuclear facilities.Water, with its high density (1 g/cm³) and relatively low atomic number (1), serves as a practical shielding material in certain applications. Its mobility and ease of handling make it suitable for temporary shielding purposes, such as in radiation therapy or during nuclear emergencies.In addition to traditional shielding materials,research and development efforts are continuously focusedon exploring novel materials with enhanced shielding properties. These include nanocomposites, metamaterials,and materials with tailored microstructures. Nanocomposites, composed of a combination of materials with different properties, offer the potential to combine the advantagesof various shielding mechanisms. Metamaterials, engineeredto exhibit specific electromagnetic properties, can be designed to selectively shield against specific radiationfrequencies. Tailored microstructures, such as photonic crystals, can manipulate the propagation of radiation, effectively reducing its transmission.The selection of appropriate shielding materials and the optimization of shielding design require careful consideration of the radiation type, energy, and intensity, as well as the specific application requirements. A comprehensive understanding of the underlying physics and the properties of shielding materials is essential for developing effective and practical radiation protection strategies. By harnessing the power of shielding, we can mitigate the risks associated with radiation exposure and ensure the safety and well-being of individuals in various radiation-intensive environments.。

黑暗恐怖场景描写英语作文

黑暗恐怖场景描写英语作文1. The room was pitch black, the only sound was the faint drip, drip, drip of water echoing in the distance.2. Shadows danced on the walls, twisting and contorting into grotesque shapes that seemed to move of their own accord.3. A cold chill ran down my spine as I felt a presence in the room, something unseen but undeniably there.4. The air was heavy with the scent of decay, a sickly sweet odor that made my stomach turn.5. Every step I took seemed to echo through the empty corridors, the sound bouncing off the walls and coming back to me like a mocking laugh.6. I could hear the sound of whispers, soft and indistinct, as if the very walls were alive with themurmurs of the dead.7. The darkness seemed to press in on me from all sides, suffocating and oppressive, making it hard to breathe.8. I felt as if unseen eyes were watching me, following my every move with a malevolent intent.9. The silence was broken by the sudden creak of a floorboard, the sound startling in its stark contrast tothe quiet.10. I could feel my heart pounding in my chest, the sound reverberating in my ears like a drumbeat of impending doom.。

一切都有裂缝,那是光照进来的地方英语作文

一切都有裂缝,那是光照进来的地方英语作文There are cracks in everything, that's how the light gets in.Cracks. They are everywhere. In the walls, in the pavement, in our hearts. They are a part of life, a reminder that nothing is perfect, that imperfections exist in everything. But these cracks, they are not something to be feared or avoided. Instead, they should be embraced, for it is through these cracks that light enters our lives.In our daily lives, we often encounter challenges and obstacles. We face setbacks and failures, and it is in these moments that we feel the cracks forming. It is easy to get discouraged, to lose hope. But it is important to remember that these cracks are not signs of weakness, but rather opportunities for growth and transformation.When we face adversity, it is natural to feel overwhelmed and defeated. But it is in these moments that we must remember the power of resilience. It is through these cracks that we learn to pick ourselves up, to dust ourselves off, and to keep moving forward. It is through these cracks that we discover our inner strength and determination.The cracks in our relationships are perhaps the most painful. We invest our time and emotions into building connections with others, only to have them fracture and break. But it is through these cracks that we learn the true value of forgiveness and understanding. It is through these cracks that we learn to mend and rebuild, creating stronger and more meaningful relationships.In the pursuit of our dreams and passions, we often encounter obstacles and roadblocks. We may face rejection and disappointment, and it is in these moments that we feel the cracks forming. But it is through these cracks that we learn the importance of perseverance and determination. It is through these cracks that we find the courage to keep pushing forward, to keep chasing our dreams.The cracks in our own selves are perhaps the most difficult to face. We all have insecurities and flaws, and it is easy to let them consume us. But it is through these cracksthat we learn self-acceptance and self-love. It is through these cracks that we discover our true worth and potential.So, embrace the cracks. Embrace the imperfections. For it is through these cracks that the light enters our lives. It is through these cracks that we find strength, resilience, and growth. It is through these cracks that we discover the beauty in our own humanity.In the end, it is not about avoiding the cracks, but rather about embracing them. It is about recognizing that life is not meant to be perfect, but rather a journey of growth and self-discovery. So, let the light shine through the cracks, and let it guide you towards a life filled with purpose and fulfillment.。

朋友间的屏障英语作文

朋友间的屏障英语作文Barriers Among Friends.Friendship is a beautiful bond that often fosters a sense of warmth and companionship. However, even theclosest of friends can encounter barriers that may threaten their relationship. These barriers can arise from various reasons, such as misunderstandings, differences in opinions, or even ego clashes. In this essay, I will explore the nature of these barriers and suggest ways to overcome them, maintaining the harmony and depth of friendship.One of the primary barriers in friendships is misunderstanding. Communication is the lifeblood of any relationship, and when it is imperfect or lacking, misunderstandings can flourish. For instance, a casual remark made in jest might be interpreted as a serious insult, leading to hurt feelings and a sense of distance. Similarly, a failure to communicate one's expectations or needs can create a sense of dissatisfaction and frustration.To overcome this barrier, it is essential to cultivate active listening skills and to clarify any ambiguous statements. Openly discussing feelings and expectations can help to dispel misunderstandings and strengthen the bond of trust between friends.Differences in opinions and perspectives are another common barrier. Friends often have diverse backgrounds, beliefs, and life experiences that shape their worldviews. While these differences can be enriching, they can also lead to conflicts if not handled with maturity and respect. It is crucial to remember that opinions are subjective and do not necessarily reflect the worth or character of a person. Engaging in respectful discussions, rather than arguments, can help to bridge these differences and promote a deeper understanding of each other's perspectives.Ego clashes can also create barriers between friends. Ego, being the sense of self-importance or pride, can sometimes cloud one's ability to see the bigger picture. When friends' egos clash, it can lead to competitive behaviors, jealousy, or even rivalry. To overcome thisbarrier, it is important to cultivate humility and the ability to see oneself as part of a larger group or community. Recognizing that one's own ego is not the center of the universe can help to deflate conflicts and foster a more collaborative and supportive friendship.Additionally, busy schedules and changing priorities can create distance between friends. In today's fast-paced world, it is easy to get caught up in work, studies, or social activities and neglect our friendships. This lack of contact can lead to a sense of estrangement and even makeit difficult to rekindle the old bonds. To counter this barrier, it is essential to make time for friends, even if it is just a quick catch-up over a cup of coffee or a phone call. Regularly scheduling time together can help to maintain the continuity of the friendship and prevent it from fading away.Lastly, changes in life circumstances, such as relocations, new relationships, or significant life events, can also introduce barriers. These changes can lead to friends growing apart as their lives take different paths.However, true friendships are resilient and can weather such storms. To navigate these changes, it is important to maintain open communication, share updates, and offer support whenever possible. Accepting that friends may have different paths but still cherishing the memories and time spent together can help to maintain the bond even when life takes them apart.In conclusion, barriers in friendships are inevitable, but they are not permanent. With open communication, mutual respect, and a willingness to work through conflicts, these barriers can be overcome. The key is to remember that friendships are built on a foundation of trust, understanding, and support. By nurturing these qualities, we can traverse any barrier and enjoy the rich rewards of a lasting and fulfilling friendship.。

封锁的英文短语

封锁的英文短语1. “Lock down”，就像把自己关在一个盒子里，与世隔绝。

比如说疫情期间，城市lock down了，我朋友说：“We are locked down in the city. It feels like we're in a different world.”2. “Seal off”，这感觉就像是给某个地方贴上了封条，谁也进不去出不来。

我看到新闻里说某个危险区域被seal off了，就像我小时候妈妈把糖果盒密封起来不让我吃一样。

“They sealed off that are a. No one can get in or out, just like a sealed box.”3. “Blockade”，好比在道路中间筑起一道高墙，阻断一切。

电影里常常有这种场景，一方对另一方进行blockade，就像我邻居和别人吵架后把他家门口blockade起来不让人靠近，“The enemy imposed a blockade. It's like blocking the way to your own heart.”4. “Shut in”，就像是被关进小黑屋，特别压抑。

我有一次被意外shut in电梯里，当时我想：“I'm shut in this elevator. It's so horrible, like a caged animal.”5. “Close off”，仿佛把某个地方的大门紧紧关闭，拒绝外界的进入。

我去旅游的时候，有些私人领地被close off，主人说：“We close off this place for privacy. It's like closing the door to strangers.”6. “Enclose”，就好像把东西包裹在一个圈里，出不去。

我看到一个花园被enclose起来，园丁说：“We enclose this garden to protect the flowers. It's like enclosing a precious jewel.”7. “Hem in”，感觉像是被敌人包围了一样，动弹不得。

Breakingdownthebarrier攻破屏障

Breaking down the barrier攻破屏障A glimmer of hope for a drug that treats disease caused by prions药物治疗朊病毒感染疾病的一线希望THE epidemic of mad-cow disease in people that some forecast in the 1990s has not, fortunately, come to pass. But Creutzfeldt-Jakob disease, to give its proper name, is still a nasty illness that humanity would be better off without. 时至今日，疯牛病没有像上世纪90年代的某些预言说的那样在人群中流行，真是幸运。

这种严重损害人类性情的疾病的准确名称叫克雅氏病，治疗起来仍然棘手。

It is also a strange illness.克雅氏病是一种奇怪的疾玻CJD and a handful of similar neurological conditions are caused by the misfolding of a particular protein that is found in the membranes of certain nerve cells.该病以及类似的一些神经症状是由于某种神经细胞的细胞膜上的一个特殊蛋白发生错误折叠所致。

The strangeness is that the misfolded protein, known as a prion, somehow catalyses other molecules of the protein to misfold in the same way.这种错误折叠的蛋白称为朊病毒，令人奇怪的是它可以催化其他蛋白分子发生相同的错误折叠，The result is a chain reaction in which more and more protein ends up as prions. 这个链式反应使越来越多的蛋白质变成朊病毒。

屏障的意思是什么

屏障的意思是什么屏障的意思：指屏风或阻挡之物，也有保护遮蔽的含义。

英文解释protective screen;parclose;[非] scherm;barrier ;详细解释亦作“ 屏鄣”。

屏风。

《晋书·阮籍传》：“ 籍乘驴到郡，坏府舍屏鄣，使内外相望，法令清简。

” 唐杜甫《韦讽录事宅观曹将军画马图歌》：“贵戚权门得笔跡，始觉屏障生光辉。

” 元白朴《墙头马上》第一折：“小姐，佳人才子为甚都上屏障，非同容易也呵!” 明刘基《发普济过明觉寺至深居记》：“诸峯咸外列如屏障，故寺高不露。

”参见“ 屏风”。

泛指遮蔽、阻挡之物。

唐李山甫《山中依韵答刘书记见赠》：“野寺连屏障，左右相裴回。

”《明史·王复传》：“险隘俱在内地，而境外乃无屏障，止凭墩堡以守。

” 艾青《在浪尖上》诗：“他是一架大山--敌人难于逾越的屏障。

”保护，遮蔽。

明朱有燉《风月牡丹仙》第三折：“从今俺皆尊让牡丹仙，愿情在他四围屏障奉侍他也。

” 杨朔《洗兵马》卷上一：“山头上长满赤松、杉松、落叶松，莽莽苍苍的，是屏障南朝鲜的一道险要门户。

”中英例句我们可能需要一个屏障干吗用的?We might need a barrier. A barrier for what?她说，一些国家树立起了电子屏障，以阻止本国人民接触国外的网络。

'Some countries have erected electronic barriers that prevent their people from accessing portions of the world's networks,' she said.许多投资者都开始觉得，商品可以成为抵御通胀的一道屏障。

For many investors, they start to look like a hedge against inflation.。

燃压机组常见英文缩写解读

燃压机组常见英文缩写编者:刘洵中国石油西气东输新疆管理处二〇〇七年六月编者说明本文大多数词是SOLAR，R-R,GE公司提供的资料前面的缩写,也加了一些通用的常用缩写字,供燃机各压气站工作人员参考.压缩机常用词汇●压气站compression station●燃气；发生器gas generator(GG)/gas producer(GP)●压缩机，压气机compressor(comp,compr.)●气体；可燃气；燃气；天然气；汽油（美）gas●动力（滑轮；自由滑轮）power turbine●燃料fuel 液体燃料liquid fue 滑油oil●燃料气fuel gas 润滑油lubricate●润滑油lubricating oil,lube oil 油田oil fiele●气田gas field●中国石油公司PetroChina=Petroleum China●中国（国营）石油公司CNPC=China National Petroleum Company●中国石化公司Sinopec Sino Pertro-Chemical(Company)空气air 天然气natural gas改压油hydraulic oil 煤油kerosene,kerosene （大口径）管子pipe 管线pipeline(小口径)管子tube 管道局Pipenline Bureau西气东输工程WEPP=West-East Pipeline Project 用户customer 校验；校正calibration认可accept 批准approve 装置device 机组单位unit 安装，设备机组installation检验inspection 检查check 软管hose 控制，控制器control 控制器，控制装置controller 手动的manual 自动的auto(matic) 本地的local 局域网Local area net(LAN)operation操作，运行run 运行,动作。

最大无菌屏障名词解释

最大无菌屏障名词解释
最大无菌屏障是制药、食品、化工等行业中常见的一种技术手段，即在生产过程中创造一个防止微生物污染的隔离区域，保证产品的纯净度和质量。

1. 基本概念
最大无菌屏障，英文名为Maximum Aseptic Barrier（MAB），是指在制药或食品生产过程中，建立一种封闭性的环境，以防止空气、物品和人员的微生物污染，从而获得无菌等级的产品质量。

这个障碍的目的是完全消除细菌、芽胞、梭菌等微生物的入侵，保持生产流程的纯洁性。

2. 建立过程
（1）设置一定面积的隔离区域：首先要确定隔离区域的大小，面积应根据产品生产规模和工艺要求的选择。

（2）隔离区域的设计：隔离区域的设计应满足操作者无菌要求和环境控制要求的双重目的。

设计应包括气流和净化设备安装、物料的进出口设备、人员的进出口和操作步骤的设定。

（3）空气净化：建立最大无菌屏障首先必须保证隔离区域内的空气洁净度，应该在工作区域内设置洁净技术，如终端过滤器、洁净间隔离器、高效过滤器等设备。

（4）人员培训：所有进入隔离区域的人员都必须经过职业培训，并对操作员进行定期操作培训和无菌技术培训。

3. 应用领域
最大无菌屏障广泛应用于制药、食品、化工等行业。

在医学制品和食品行业，最大无菌屏障技术是保证产品质量和安全的关键技术之一。

多种精细药品、生物制品、孕育了多种蛋白质的相关器械制造等工业领域，采用最大无菌屏障技术更是必不可少。

同时，化工行业也运用该技术来保证产品的纯净度和稳定性。

综上所述，最大无菌屏障利用现代科技手段创造一个无菌、环保、
安全的生产隔离区域。

在生产不同行业的高质量产品过程中起着不可或缺的重要作用。