The abrasion of water release structure is of the main technique problems on the Wanjiazhai Hydroproject.

泄水建筑物的磨蚀问题是万家寨水利枢纽工程的主要技术问题之一.

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After the toilet bowl is filled with with some flush water release the flush water valve.

当马桶内装入一些水后,脚离开进水阀门踏板.

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