Shipbuilding . sea water valves . screw - down stop - and - check valves with opening mechanism . pattern iv . operating mechanism parts list.

造船工业。海水专用阀门。带打开机构的螺杆向下止动和止回阀。式样。操作机构零件细目表。

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Usually installed in the valve, pressure relief valves, water valves or other devices given the import side, the medium used to remove impurities, to protect the normal use of valves and equipment.

通常安装在减压阀，泄压阀、定水位阀或其它设备的进口端，用来消除介质中的杂质，以保护阀门及设备的正常使用。

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But even then, the water in the pipes tends to be radioactively contaminated because the valves that separate it from the reactor are not entirely tight.

但是即便如此，水管中的水也可能会存在放射性污染物，因为用于把水域反应堆隔开的阀门并不完全是密闭的。

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Clams also soften the sediment by expelling jets of water from between the valves of their shells.

ECONOMIST: Robots

As Wall Street drooled over new-economy industries, Mr Kozlowski dug into less glamorous work, buying struggling firms in businesses such as pipes and valves, water sprinklers, fire extinguishers, syringes and nappies.

ECONOMIST: Face value

It meant reframing people who are making pipes and valves to being in the water business.

FORBES: The Capital of Water