吸力面 suction back; upstream face 压力面 acting face; acting surface; pressure face; pressure side; pressure surface ..
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vertical upstream face 垂直上游面
upstream face of dam 上游坝面
vertical crack in upstream face 上游面竖向裂缝
vertical crack on upstream face 劈头缝
upstream pumping mechanical face seal 上游泵送机械密封
upstream dam face 上游坝面
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There were 20 cracks at upstream face dam head of Huanren dam during construction which threatened dam safety.
桓仁大坝上游面施工期发现严重的劈头缝20条，威胁大坝安全。
The pier arrangement on spillway crest with sloping upstream face is studied by 310 sets of experiments in the paper.
本文通过310组试验，研究了上游面倾斜的溢流坝的闸墩布置。
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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