... 接箍定位器 collar locator 节流管线阀 throttle pipe valve 金属油罐 metallic oil tank ...
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steam pipe of throttle valve 节气阀蒸汽管
A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper.
节流阀，减压阀：管道内沿直径中心轴线上的圆片状旋钮，用作节流阀门或阀门。
Butterfly valve through the valve shaft rotation to drive the rotation of a disc-shaped disc, to open and close a valve, cut off from the main pipe and throttle with.
进口蝶阀是指通过阀轴旋转来带动一个圆盘形的蝶板的转动，达到开启与关闭的一种阀门，在管道上主要起切断和节流用。
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