The fairing rings are built in the inlet and outlet of the vertical parts of inverse U bend respectively in order to restrain the effect of bend on the flow in it.

在倒U型管垂直段的两端内分别放置一个整流环，来消除入口弯头对垂直段流动的影响。

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The space (11) is equipped with bend tube (17), the outer cylinder and the inner cylinder are opened with hole (5) which is equipped with water inlet pipes.

在空间(11)内装有弯管(17)，在外筒、内筒上制有孔(5)，孔内装有进水管等。

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