downstream face of dam 坝的下游面
The Penstock laid on downstream face of dam is not only a new type of arrangement, but also a new kind of structure.
混凝土坝下游面钢衬钢筋混凝土管道既是一种新型的布置方式，又是一种新型的结构形式。
There are many treatment method for seepage of concrete dam body. Blocking at upstream face and drainage at downstream face is one generally adopted.
混凝土坝体渗水处理目前方法很多，一般采用上堵下排的方法。
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