... butterfly stroke 蝶泳 butterfly throttle 蝶形风门 butterfly valve 蝶形阀 ...
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... barrel throttle 桶形节流阀; 筒形节流阀 butterfly throttle 蝶形调节门; 蝶形节流阀; 蝶形节流门 cam throttle 凸轮调节阀 ...
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butterfly throttle valve 蝶形节流阀 ; 蝶形节省阀
throttle butterfly valve 节流蝶阀
throttle butterfly plate 节流阀蝴蝶板
throttle butterfly 节气门
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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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