GRAVITY-TYPE DAMS OF UNCEMENTED MASONY were built as long as 4000 B.C. The oldes recorded masonry dam was completed in 1586 near Almanza, Spain. It was constructed on rock, using rubble masonry, and stood about 48 ft. high. Errly masonry dams utilized clay mortar; later, lime mortar was discovered and used.
This booklet provides information On Small concrete damsless than 100 ft．in height．However,the principles also apply to higher，more massive structures．Generally，as the dam height increases design Problems increase,and solving them requires greater knowledge of the factors that govern the dam design．
Modern dams are being built with portland cement concrete．Literally thousands of concrete dams are Providing water Supply storage,irrigation,flood contr01,and power generation．Technological advances in the 20th Century make it possible to build dams approaching 1,000 ft.in height．
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ljmtidilgw
沙发
上面有人问水利如何翻译，一定要看哪个层次，哪个单位，然后确定，否则会出笑话。水利工程师有叫Water Engineer的，有Water Department。水利工程就叫water control project。
2005-11-02 20:37:02
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fangwh
板凳
我觉得英语和计算机在水利行业很重要
2005-10-29 21:20:29
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fangwh
地板
水利水电工程 water conservancy and Hydro power project
2005-10-29 21:18:29
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xwb001115
4楼
This booklet provides information On Small concrete damsless than 100 ft．in height．However,the principles also apply to higher，more massive structures．Generally，as the dam height increases design Problems increase,and solving them requires greater knowledge of the factors that govern the dam design．
2005-09-23 17:26:23
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xwb001115
5楼
Modern dams are being built with portland cement concrete．Literally thousands of concrete dams are Providing water Supply storage,irrigation,flood contr01,and power generation．Technological advances in the 20th Century make it possible to build dams approaching 1,000 ft.in height．
2005-09-23 17:24:23
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点击查看全部回复（24条）Water conservancy太偏保护了。如果是水土保持部，用Department of Land and Water Conservation没问题.
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