工程机械专业英语词汇481 ... vent cap；排气[通风]口罩 vent check valve；排气[通风]道止回阀 vent cock；排气[通风]道阀门 ...
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brake vent check valve 制动器排气单向阀
A leeward side of the box is provided with at least one air outlet having a vent check valve.
所述箱体的背风面至少具有一个带有出气单向阀的出气口。
Gravity ball check valves are converted to vent valves by replacing the standard ball with a floater ball and inverting the valve at installation-with seat up.
重力球形止回阀可以变为通风阀，只需用漂浮球体更换标准球体，然后在安装时将阀门倒置，使其阀座向上即可。
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