反冲洗阀

backwash valve的用法和样例：

例句

The Urinal flush valve is able to be connected with top or rear water inlet urinal ceramics.吉博力小便冲洗阀可与上进水或后进水的小便器相连。

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unfold unify unique unity universe update upgrade uphold upright urban urge utilise utmost vacant vain valid valve van variation variety vary vast vegetation vihicle veil vein velocity velvet vent ventilate venture verbal verdict verge verify versat

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There would soon be an explosion; the kettle would be burst open. It is in this way that boiler explosions are often caused. When there is too much steam in a boiler, and it cannot get out, it presses against the sides of the boiler, until at last th

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The navy has prepared for this by building what is called a weak link into their anchor chains. The weak link is the last link in the chain, and while its strong enough to hold together in general, its weak enough to break if the whole weight of the

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