... 量第阀 flow control valve ; flow regulating valve ; l valve 量控阀 MSV 空气量孔阀 air bleed valve ...
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... flow coefficient 量系数 flow control valve 量第阀 flow control 量第 ...
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... 量第阀 flow control valve ; flow regulating valve ; l valve 管道量第 channel flow adjustment 河道量第 stream flow control ...
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