英文报价单

合集下载

中英文报价单模板

中英文报价单模板

中英文报价单模板英文报价单模板:[City, State, ZIP Code][Phone Number][Email Address][Website][Date][Customer Name][Customer Address][City, State, ZIP Code]Dear [Customer Name],Thank you for your interest in our products and services. We are pleased to provide you with a detailed quotation based on your requirements. Please find the breakdown of the costs below: Product/Service: [Name of the Product/Service]Quantity: [Number of units]Unit Price: [Price per unit]Total Price: [Total cost]Additional Costs:1. Shipping and Handling: [Cost]2. Taxes: [Cost]3. Customs Duties: [Cost]4. Insurance: [Cost]Total Costs (excluding taxes and customs duties): [Total]Terms and Conditions:1. Payment Terms: [Payment options, such as 50% upfront, 50% upon delivery]3. Validity: [Quotation validity period]Please note that the quotation provided is valid for [Validity period]. If you have any further questions or require any additional information, please feel free to contact us. We are always available to assist you.We are confident that our products/services will meet your expectations and provide you with the best value for your investment. We look forward to the opportunity to work with you.Best regards,[Your Name][Your Title][Your Contact Information]中文报价单模板:【您的公司名称】【您的公司地址】【城市,州,邮政编码】【电子邮件地址】【网站】【日期】【客户姓名】【客户地址】【城市,州,邮政编码】亲爱的【客户姓名】感谢您对我们产品和服务的关注。

最专业的中英文报价单

最专业的中英文报价单
页数Page :1/1
报价单 Quotation
工程名称Project Name 项目地点Project Place
2 3
船型Hull Type
海事局
烟台 币种Currency:RMB
4 5 6
关于Sub:
项次 Item 品名 Description 外框Frame 材质 颜色 尺寸Size(mm) 图纸Drawing 名义Nominal 图纸号 Drawing No 颜色 功能 单位 Unit 数量 Qty 单价 Unit price 折扣 Discount
11 12
¥0.00
11 12 13
报价人Prepared by:14ຫໍສະໝຸດ 欢迎莅临考察指导Welcome
to visit us.We hope our offer is in line with your requirements and looking forward to receiving your valuable order.
1 2
致To:
编号 Ref No: 日期Issued Date: 报价有效期Validity:30天
1 2
Your Ref No:
2 3
sent by email dated 2018-05-22 船东Shipowner 国别Country 船级Class 船厂Shipyard 项目号Project No
4 5 6
金额 Amount
7 8 9 10
备注Remarks:
总金额Sub Total Amount: 折扣Special Discount: 运费freigh: 安装费Installation fee TOTAL RMB:
7 8 9 10

中英文报价单模板(可修改)

中英文报价单模板(可修改)

报价单 Quotation
Customer name 客户名称:Provider提供商:
Contact 负责人: Contact number 联系方式:Address 地址:
Date of quotation 报价日期:20 - - 联系中心: phone:
System:系统号: hotline(服务热线) / website(公司官网)
1、报价有效期 15天。

offer is valid for 15 days。

2、此报价/13%增值税,运输,物流,安装,售后服务等费用。

Quotation includes VAT, transportation, logistics, installation, after-sales service, etc。

3、产品保用八年product is guaranteed for eight years。

4、供货周期:确认订单后生产周期7-10天内完成交付使用。

Delivery cycle: The production cycle shall be completed within 7-10 days after the order is confirmed。

5、购销合同为双方确认之最后档。

purchase and sale contract is the final document to be confirmed by both parties。

Agent 客户经办:Company or seal 公司签章:
Date of确认日期:sales representative 销售代表:
第 1 页,共 1 页。

英文报价表样品报价表格模板英文报价单

英文报价表样品报价表格模板英文报价单

Machine size Sample 1000 PCS 3000 PCS 5000 PCS 13.5*6.6*1.3 CM Carton SizeMachine size Sample 1000 PCS 3000 PCS 5000 PCS 16.2*7.5*1.5CM Carton SizeMachine size Sample 1000 PCS 3000 PCS 5000 PCS 15.5*7.5*1.4 CM Carton SizeLOGOxxxxxxxxxxxxxxxCo., Ltd.Contact: Winna Mobile/wechat/whatapp: +86 199999999Email:*********************: Address:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>Capacity: 6000mAh>Size: 134*66*11mm >M Cloth+Metal or Leather+Metal >Input: Micro-USB DC5V/2.0A >Output: 4PIN-USB DC5V/1.0A >Output: Type-c-USB DC5V/2.4A>Protection Functions for short circuit, ove charge, discharge>Capacity: 8000-12000mAh >Weight: 150g>Size: 16.2*7.5*1.5cm>Material: Cloth+Metal or Leather+Metal >Input: Micro-USB DC5V/2.0A >Output: 4PIN-USB DC5V/1.0A >Output: Type-c-USB DC5V/2.4A>Protection Functions for short circuit, ove charge, dischargePackage: USB +Type-c Cables, Blister, giUS$6.5US$9.6US$7.6US$9.8US$7.8US$7.0US$10.0US$8.0$15.0$15.0XD-P11P o w e r B a n kP o w e r B a n kw e r B a n kXD-P5XD-P10Price (USD )>Capacity: 10000mAh>Weight: 207g >Size:15.5*7.5*1.5cm >Material: Cloth+Plastic cementor skin+Pl cement>Input: Micro-USB DC5V/2.0A >Output: 4PIN-USB DC5V/1.0A >Output: 4PIN-USB DC5V/2.4A>Protection Functions for short circuit, ove charge, dischargePrice (USD )FCA HK Price (USD )With Package$12.0US$6.8Machine sizeSample 1000 PCS 3000 PCS 5000 PCS Carton SizeMachine sizeSample 1000 PCS 3000 PCS 5000 PCS Carton SizeMachine sizeSample 1000 PCS 3000 PCS 5000 PCS Carton Size>Capacity: 13000mAh , opti Size: 12.2*7.5*2.2cm >Material: ABS+PC>Input: Micro-USB DC5V/2.0A >Output: 4PIN-USB DC5V/1.0A >Output: 4PIN-USB DC5V/2.4A>Protection Functions for short circuit, ove charge, dischargeSolar power bank Solar power: 1.5WElectric core: polymer Battery.Capacity: 10000MAH Input: 5V-1ADual output: 5V-1A 5V-2.1A Size: 157*106*13mm Product weight: 195gColor: red, black, orange, yellow, green$7.6$9.0$8.5$7.8$9.5$9.0$8.0$10.0$9.5$12.0$15.0$15.0XD-P12XD-PS01XD-S07P o w P o w e r B a n kP o w e r B a n kPrice (USD )Price (USD )Price (USD )>Weight: 207g >Size:15.5*7.5*1.5cm >Material: Cloth+Plastic cementor skin+Pl cement>Input: Micro-USB DC5V/2.0A >Output: 4PIN-USB DC5V/1.0A >Output: 4PIN-USB DC5V/2.4A>Protection Functions for short circuit, ove charge, dischargeMachine size Sample 1000 PCS 3000 PCS 5000 PCS Carton SizeMachine size Machine sizeSample 1000 PCS 3000 PCS 5000 PCS Carton Size Smart portable one time use gift >Capacity: 2600mAh >Weight: 72.3g >Size:97*31*22cm >Color: white>Input: AC100-240V,50-60HZ >Output: DC5V/1.0A>Protection Functions for short circuit, ove charge, discharge,over current, over voltag3 in 1 bluetooth speaker w led torchElectric core: liquid lithium ion battery (18Capacity:10000mahMaterial: plastic + aluminum shellAdditional features: LED with flashlight Size: 138*47*27mmPower supply capacity: 2600-10400MAH Color: black, orange, yellow, green>Capacity: 5000mAh>Weight: 128g with AC external plug >Size:12*6*1cm>Color: black, orange, yellow, greenMaterial:Drying grain scrub treatment, anti ,non slip ,anti fingerprint.>Input: Micro-USB DC5V/2.0A >Output: 4PIN-USB DC5V/1.0A >Output: 4PIN-USB DC5V/2.1A>Protection Functions for short circuit, ove charge, discharge.>Feature:Untra thin with datacable(iphone,micro,type c for choice)$2.7$6.5$2.6$6.8$5.0$7.0$2.8$12.0XD-PA2XD-P2P o w e r B a n kP o w e r B a n kPrice (USD )Price (USD )gift >Capacity: 2600mAh >Weight: 72.3g>Size:97*31*22cm>Color: whitecharge50g*7.5*1.5cmchargecro-USB DC5V/2.0APIN-USB DC5V/1.0APIN-USB DC5V/2.4An Functions for short circuit, overcharge*7.5*2.2cm ABS+PC charger: 1.5W 0000MAH 1A106*13mm ight: 195g07g >Size:15.5*7.5*1.5cmCloth+Plastic cementor skin+Plastic charge2.3g1*22cmiteC5V/1.0An Functions for short circuit, over charge,over current, over voltage.0000mah 47*27mm*1cm charge.city: 2600mAh 2.3g1*22cmiteC5V/1.0A。

英文报价单格式

英文报价单格式

英文报价单格式一、报价单的头部(Head)01,卖家基本资料(举例)工厂标志(Factory Logo)公司名称(Company)详细地址(Detailed Address)邮政编码(Post Code)联系人名(Contact)职位名称(Job title)电话号码(Telephone No.)传真号码(Fax No.)手机号码(Mobile No.)邮箱地址(E-mail Address)聊天方式(Messenger Online)公司网址(Website Address)02,买家基本资料(举例)工厂标志(Factory Logo)公司名称(Company)详细地址(Detailed Address)邮政编码(Post Code)联系人名(Contact)职位名称(Job title)电话号码(Telephone No.)传真号码(Fax No.)手机号码(Mobile No.)邮箱地址(E-mail Address)聊天方式(Messenger Online)公司网址(Website Address)03,报价单的抬头:报价单标题(Quotation/Quotation Form/Price List)参考编号(Reference No.)报价日期(Date)有效日期(Valid date)外观颜色(Colors)should be tightened, no loose, Terminal Board wiring should be oneon each side, no more than two. J, shielded wire, spare wire binding order, reliable grounding. 7.7 quality standard 7.7.l cables through the cable embedded tube making use of galvanized steel pipe, tube ends without burrs, smooth. 7.7.2 pipe does not allow bending, bending the bend radius should be ? 4 times times the outer diameter of the tube in.7.7.3 ellipticity of a bent tube, pipe diameter ? 60mm, not >8%,diameter >760mm, not >6%. 7.7.4 making cables buried piping application root production, growing where interface is required, only straight pipe, only the wire port connections, welded connections are not allowed.7.7.5 service sleeve should have a good grounding. 7.7.6 cable trays installation, burrs and dirt and corrosion treatment should be carried out, install the bridge ... 7.8.1.7 piping and piping, equipment andequipment or piping and other equipment shall have sufficient expansion gap in hot situations. 7.8.1.8 metal temperature of the insulating layer (hot) = shell-wall temperature of environment temperature ? 40 ? c.7.8.2 paint 7.8.2.l paint of equipment and pipelines should have atleast a primer (red paint) and finish. 7.8.2.2 paint appearance color uniform, without paint, rust, flaking, wrinkles, flow marks, scum, paint particles and visible brush marks. 7.8.2.3 interlayer should be tight and without stratification. 7.8.2.4 pipelines asphalt, fiber glassfabric corrosion, external appearance should never show surrounded by glass fiber cloth uniform, dense, painted pitch inspection should be no delamination, cavitation, homogeneity of asphalt coating, brushing each layer thickness in accordance with design requirements. Standard 7.9 7.9 structure placement process. 1 fair-faced concrete is a concrete surface without any decoration, structure appearance quality of concrete structure that is able to display strength and aesthetic perception of quality standards. Construction technology requirements are as follows: template template Panel selection and processing require plate high strength, good toughness and光源类型(Type of Lamp-house)光源数量(Nos. of lamp-house)光源颜色(Colors of lamp-house)三、产品技术参数(Product’s Technical Parameters)01,电力类产品技术参数:电流、电压、电阻、电弧、功率、频率、负载等。

外贸英文报价模板

外贸英文报价模板

外贸英文报价模板在外贸行业中,报价是至关重要的一个环节。

一个清晰、准确的报价模板可以提高效率,减少错误,并确保客户得到最好的服务。

本文将介绍一个外贸英文报价模板,帮助读者更好地开展外贸业务。

一、报价单头1. 报价单号:Quotation No.2. 报价日期:Date3. 客户名称:Customer Name4. 客户地址:Customer Address5. 联系方式:Contact Information二、产品列表1. 产品名称:Product Name2. 产品描述:Product Description3. 单位:Unit4. 数量:Quantity5. 单价:Unit Price6. 总价:Total Price三、贸易条款1. 贸易方式:Trade Terms2. 付款方式:Payment Terms3. 交货期:Delivery Time4. 装运港:Port of Shipment5. 目的港:Port of Destination四、报价条件1. 汇率:Exchange Rate2. 货币:Currency3. 报价有效期:Quotation Valid 期4. 运输方式:Mode of Transportation5. 保险:Insurance五、报价说明1. 产品质量:Product Quality2. 包装规格:Packaging Specification3. 贸易条款:Trade Terms4. 付款方式:Payment Method5. 运输方式:Transportation Method6. 保险条款:Insurance Terms六、报价单尾1. 报价总计:Total Quotation2. 报价备注:Remarks3. 签名:Signature4. 日期:Date综上所述,外贸英文报价模板是一个有助于外贸业务高效、准确开展的工具。

英文报价单模板及范文

英文报价单模板及范文

英文报价单模板及范文English:Quotation TemplateCompany Name: [Your Company Name]Contact Person: [Your Name]Contact Information: [Your Contact Number/Email]Date: [Date of Quotation]Item Description Quantity Unit Price Total Price1. [Product/Service 1] [Quantity] [Unit Price] [Total Price]2. [Product/Service 2] [Quantity] [Unit Price] [Total Price]3. [Product/Service 3] [Quantity] [Unit Price] [Total Price]4. [Product/Service 4] [Quantity] [Unit Price] [Total Price]5. [Product/Service 5] [Quantity] [Unit Price] [Total Price]Subtotal: [Subtotal Amount]Tax: [Tax Amount]Shipping: [Shipping Cost]Total: [Total Amount]Notes:- Payment Terms: [Payment Terms]- Validity: [Quotation Validity]- Delivery Time: [Delivery Time]Thank you for considering our quotation. Please do not hesitate to contact us for any further information or clarification.中文:报价单模板公司名称:[您的公司名称]联系人:[您的姓名]联系方式:[您的联系电话/邮箱]日期:[报价日期]项目描述数量单价总价1. [产品/服务1] [数量] [单价] [总价]2. [产品/服务2] [数量] [单价] [总价]3. [产品/服务3] [数量] [单价] [总价]4. [产品/服务4] [数量] [单价] [总价]5. [产品/服务5] [数量] [单价] [总价]小计:[小计金额]税金:[税金金额]运费:[运费成本]总计:[总金额]备注:- 付款条件:[付款条件]- 有效期:[报价有效期]- 交货时间:[交货时间]感谢您考虑我们的报价。

报价单英文模板

报价单英文模板

报价单英文模板篇一:报价单-英文版Shanghai StreamRail Transportation Equipment Co., Ltd.Add: 20F Pingsheng Building No. 98 Songhu Road Dist. Yangpu Shanghai ,ChinaTel: +86-21 Fax: +86-21Quotation SheetTo:Company: Fax: Phone:Project:Car number: Quotation No. Current Date:Terms & Conditions:1. 30% of total contract advance payment; 70% of total contract after each shipment.2. The above quotation excludes VAT and is fixed till Oct. 30th 2018.3. The whole project delivery pletion is based on within 3 years.4. Mockup and insurance are not included in the above.5. Warranty: 24 months after each delivery FCA China. Warranty means remote tech support,repair and replacement at Supplier's factory in China.6. Lead time: 6-8 months after contract signed and design frozen.7. Period of validity: until Oct. 30th 2018. The quotation will be adjusted according to theexchange rate and the material cost after Oct. 30th 2018.篇二:中英文双语销售报价单模板报价单Offer Sheet收件人 Attn. 发件人 From 拟制Drawn By传真号 Fax No. 日期 Date 批准Approved By1、 2、 3、 4、 5、 6、报价有效期(Period of Validity):____________________。

英文报价单范文word

英文报价单范文word

英文报价单范文wordQuotation。

Date: 10th October 2022。

To: XYZ Company。

Address: 123 Main Street, Anytown, USA。

Attn: Mr. John Smith。

Dear Mr. Smith,。

We are pleased to provide the following quotation for the products and services requested by your company:1. Product: Widget A。

Quantity: 100 units。

Unit Price: $10 per unit。

Total Price: $1000。

2. Product: Widget B。

Quantity: 200 units。

Unit Price: $15 per unit。

Total Price: $3000。

3. Service: Installation and Maintenance。

Description: Our team will provide installation and maintenance services for the widgets purchased. This includes installation of the products and regular maintenance checks.Price: $500。

4. Shipping and Handling。

Description: Shipping and handling costs for the products to be delivered to your company's location.Price: $200。

Total Price: $5700。

Terms and Conditions:1. Payment Terms: 50% of the total amount is due upon acceptance of this quotation, with the remaining 50% due upon completion of the installation and maintenance services.2. Delivery: The products will be delivered within 30 days of receipt of the initial payment.3. Validity: This quotation is valid for 30 days from the date of issue.4. Taxes and Duties: All applicable taxes and dutiesare the responsibility of the buyer and will be added to the total amount due.5. Warranty: Our products come with a 1-year warranty against defects in materials and workmanship.We hope that the above quotation meets your requirements. Should you have any further questions or require additional information, please do not hesitate to contact us.Thank you for considering our products and services. We look forward to the opportunity to work with your company.Yours sincerely,。

英文报价单范本

英文报价单范本

英文报价单范本1.英文报价单模板本来是表格格式的,不知怎地沾到这里就没有格式了,这是一张进口旧机电的报价单,附带中英文,希望对你有所帮助,还请不吝赐分!费用清单DATE:*** 合同号:报关日:Bill to:(单号)0 VALUE: SHIPPER: CONSIGNEE:旧机电进口费用:The importing charges for old mechanical and electrical equipments 代做旧机电服务费出证费The agency fee and license fee RMB *** 报关综合The comprehensive declaration fee RMB ***/票(含报关,报检,换单,录入Including the declaration ,inspection, exchanging and entry fee)贸易代理费The trading agency fee RMB *** 港口杂费&THC The terminal handling charges RMB*** 二次换单费(换D/O单The exchange fee for delivery order 约RMB *** 疏港费The demurrage charge RMB*** 仓储费The Storage fee RMB *** 滞箱费The container detention charges (船公司占箱费)RMB *** 滞报费The delayed declaration fee(到港之日后的14个工作日内无申报会产生滞报费The charges appeared on the condition of no declaration within 14 days after the equipments reached the destination port)RMB ***(已付paid)商检The inspection fee RMB ***(监管条件A)Supervision condition A 海关查验The customs inspection fee RMB *** 陆运The land freight RMB ***(塘沽港至北京昌平the port of Tanggu to Changping Beijing)海关税金The CustomsTax RMB *** (已付paid)海关后补税金The overdue Customs Tax RMB *** 合计物流The total logistics costs RMB ***(除已付的税金和滞报金the paid tax and the delayed declaration fee are excluded)旧机电部分退运清关费用:Part of the returned declaration fee for old mechanical and electrical equipments 退运关封审批费The approval fee for returning the costoms seal RMB *** 出口报关费The exporting declaration charges RMB *** 退运进口报关费The returned importing declaration fee RMB *** 退运商检费The returned inspection fee RMB *** 退运代理费The returned agency fee RMB*** 铅封处理费The seal handling charges RMB *** 更改税号费用The changing tax file number fee RMB *** 国际物流进口代垫杂费The international logistics and prepaid importing charges RMB *** 国际物流出口代垫费用The international logistics and prepaid exporting charges RMB *** 国际物流堆存The International logistics stockpiling fee RMB *** 退运清关总计The total clearance returned RMB *** 旧机电退运到香港运费相关:商品检验费The inspection fee RMB *** 文件费The documents fee RMB *** 紧急燃油附件费The emergency fuel surcharge RMB *** 港内拖车费The harbor towing fee RMB *** 预录入The pre-entry fee RMB *** 反恐附加费The surcharge of CS RMB *** 其他杂费Other charges RMB *** 港杂费The terminal handing charges RMB *** 电放费The telex release charges RMB *** THC RMB *** 国际海运费The international sea freight USD *** = RMB *** TOTAL: RMB *** 合计费用总计:The total costs: RMB *** 公司名称:*** Name of Company:*** 开户行:*** The Opening Bank:*** 帐号:*** Account No.:*** 祝好Best wishes。

中英文对照报价单模板

中英文对照报价单模板

中英文对照报价单模板Quotation/报价单Customer Name/客户名称: ________________________Date/日期: ________________________Quotation No./报价单号: ________________________Item/项目 Quantity/数量 Unit Price/单价 Amount/金额1. Product A 10 $10 $1002. Product B 5 $15 $753. Product C 8 $20 $160Subtotal 小计 $335Shipping Cost 运费 $50Tax 税额 $25Total 总计 $410Terms and Conditions/条款和条件:1. Validity/有效期: This quotation is valid for 30 days from the date mentioned above. 在上述日期起, 此报价单有效期为30天。

2. Payment Terms/付款条件: Payment of the total amount should be made within 7 days from the date of invoice. The preferred mode of payment is bank transfer. 发票日期起,应在7天内付清总金额。

首选付款方式为银行转账。

3. Delivery/交货: The delivery of the products will be made within 10 days from receipt of payment. 产品的交货将在收到付款后的10天内完成。

5. Taxes/税费: The taxes mentioned in the quotation are inclusive of all applicable taxes. 报价中提到的税款已包含所有适用税款。

报价单英文格式

报价单英文格式

Buyer(Signature) BJ101010001
Seller(Signature)来自QUOTATIONTO: ATTN: TEL: FAX:
Quote currency for RMB, including 17% VAT. PART Number 图号 Description 描述 Weight 重量(kg) Quantity 数量年 Min Batch Sizes 最小批量 Raw Material 材质 Casting Price 铸件价 Machining Heat Packaging& Price Treatment Transportation 机加工 热处理
包装运输
FROM: ADD: TEL: FAX:
Total Cost 产品单价 Tooling cost 模具价
Explain: Remark: 1.Date of sample delivery:Within 35 days after the quotation is confirmed & the module deposit is received, 2 pcs per sample. 2.Sample confirmation: Receipt of the samples within one week,the buyer shall give a reply,sample confirm qualified, one sample for buyer to seal, another one return to seller to seal; 3.The buyer needs to pay for a more diverse sample, The Sample Charge = Product Price x 1.5; 4.Payment: ①30% of the total price of the order shall be paid before production. ②After the goods left, the purchser shall pay the rest 70% within one week, then the seller delivers the Bill of Lading. 5.Product single heavy subject to the actual rough weight,according to the price level accounting products prices; 7.Quotes are based on annual purchase volume and minimum order quantities.Date of validity: Feb 31th 2013.
  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

Under 500pcs More than 500pcs wholesale business
Barcode printer
GODEXG500200
850
Remark/说明:
Golden Seed:Customer Fax No.客户传真号码:Customer Adderss:
客户地址:
We are pleased to quote the below parts to you:很高兴给您提供以下产品的报价:
Quotation 报价单
Attn/联系人:Quotation No.报价单编号:Curr./货币:201606RMB Customer Name:
客户名称:Item 项目
Product 产品名称
Model 型号Description
描述
Date/日期:Delivery:交货方式:
2016/6deliver g
Customer TEL No.客户电话号码:Customer:
2. Started to confirm the order does not accept the cancellation of orders 开始确认订货不接受取消订单
Unit Price/单价
1. Payment: 30% TT Deposit for PO Confirmation, 70% TT within one days before Delivery. 付款方式:订单确认电汇定金30%,交货前一天电汇70%。

QTY.数量(pcs)基本参数 用手机客户端查
配置更方便 型号 g500u 打印参数 解析度:203dpi;列印模式:热感式/热转式
两用;列印速度:2ips~4ips;列印长度:12mm~1727mm;列印宽度:108mm; 主要参数
报价单
0160620
RMB
016/6/20
ver goods
/单价
More than
10K 0%,交货前一天电汇70%。

相关文档
最新文档