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。
No matter how the valve is installed, the back of the upstream seat protects the face of the downstream seat.
无论阀门如何安装，上游阀座的后背都能够保护下游阀座的表面。
Experts further stated that China steel this year will again face the upstream and downstream impeded the high cost of raw materials demand "squeezed between".
专家进一步表示，中国钢铁业今年将再度面临上游高成本原料及下游不畅需求的“两头挤压”。
In this position, a downstream-face of the air filter 18 is positioned proximate or in facing engagement with the airflow grate 22a.
在这一位置，空气过滤器18的下游表面被置于靠近气流栅22a处或与其相接触。
In this position, a downstream-face of the air filter 18 is positioned proximate or in facing engagement with the airflow grate 22a.
在这一位置，空气过滤器18的下游表面被置于靠近气流栅22a处或与其相接触。
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