Lesson 07 Bridge(土木工程专业英语)

在森林区，有粗壮的木材或圆木可利用，桥梁很可能由一 根或几根平行的圆木组成，可能为了更好的行走会在上面铺上 交叉的树枝或草席。
In tropical regions of India, Africa, and South America, fibrous vines were used to build suspension bridges.
constructed by primitive peoples in isolated regions.
人类修建的第一批桥梁可能类似于那些在隔离的地区原 始人还在修建的桥梁。
The tools and building skills of early man, like those of primitive peoples today, were so elementary that he was undoubtedly forced to use easily transportable materials that could be put in p1ace with a minimum of forming and shaping.
barge 游艇
isolated 孤立的t 倾斜 swift 迅速 subsoil 地基；地下
土木工程专业英语
Bridge
Bridge is a structure that spans obstacles, such as rivers and valleys, to
在印度、非洲和南美洲的热带地区，坚韧的藤条被用来修 建悬索桥。
The vines were tied to trees or rocks on each side of the stream or valley to be crossed. One or more vines were used to tread on. Other vines, strung several feet higher, were used for hand holds.
土木工程专业英语
Lesson 7 Bridge 桥梁
New words and phrases:
valley 山谷 aerialist 高空杂技 tightrope 拉紧的绳索
obstacle 障碍
aqueduct 沟渠；水道 pedestrian 行人
cable 电缆
abutment 疆界 anchorage 停泊处；锚地 stretch 伸展 girder 梁 overlap 交叠 intersect 交叉 corbel arch 牛腿拱 intermediate pier 中间墩
藤条被系在要跨越的溪流和峡谷两边的树木或岩石上。一 根或几根藤条被用来行走。其他的藤条被挂在几英尺高处用来 供手抓。
土木工程专业英语
Bridge
Although vine bridges are usually unstable, some built by the Incas were strong and stable enough to be used by the invading Spanish soldiers and their horses.
许多高架渠桥梁承担起了沟渠和驳船交通，这些桥梁大多 数修建于19世纪的欧洲；其中至少有一座，在纽约的肯尼迪机 场，是用来在公路上方运送滑行的飞机。
土木工程专业英语
aqueduct bridges
土木工程专业英语
Bridge
The first bridges built by man probably resembled those still being
到目前为止，大多数桥梁是被设计用来承担汽车和铁路交通， 但是也有一些是只用作行人通行。
A number of aqueduct bridges, mostly erected in Europe in the 19th century, carry canals and their barge traffic；and at least one bridge, at New York City’s Kennedy AirPort, serves to carry taxying aircraft over a highway.
provide a roadway for traffic.
桥梁是跨越障碍（比如河流和峡谷）的结构物，从而为通 行提供道路。
By far the majority of bridges are designed to carry automobile or railroad traffic, but some are intended for pedestrians only.
虽然藤条桥梁通常不稳定，但是由印加人修建的一些却具 有足够的强度和稳定性，能供入侵的西班牙士兵和他们的马匹 使用。
In rocky regions, stone was used for bridges.
在多岩石的地区，石头被用来修桥。
Piles of stone were placed at short intervals across the river, providing the bridge piers, and then a path from bank to bank was made by laying flat stone slabs across adjacent piers.
早期人类使用的工具和建桥的技术就像原始人类的一样 低级，以至于无庸置疑地他得被迫使用那些以最小的形状就 能投入使用并且容易运输的材料。
土木工程专业英语
Bridge
In forest regions, where stout timbers or logs could be obtained, bridges very likely were made of one or more parallel logs, possibly covered with cross branches or matting for better footing.