The pump exhaust should lead to the open air or a fume hood.

抽气泵的排气管应该导向室外空旷处或导向一座通风橱。

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Press the "Start" button, the pump running, then open the suction valve of the pump.

按下水泵“开”按钮，泵即运转；然后打开泵的吸入阀。

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Reciprocating pump discharge pipe must be before the start of the valve to open.

往复泵启动前必须将排出管路中的阀门打开。

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Hurricanes pump huge amounts of surge water from the open Gulf of Mexico into close proximity with a large urban area.

FORBES: Hurricane Isaac and New Orleans: It's All About Water