... 管路上的活门 inline valve 发动机推动的活门 motor-operated valve 捞砂筒下部的活门 bailer dart ...
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motor operated valve 电动阀 ; 电机操作阀 ; 电动门 ; 电动活门
air motor operated valve 气压马达式操作阀
Electric-motor operated valve 电动阀
mov motor operated valve 电机操作阀
Motor operated valve YM 气动阀
motor-operated extraction valve 电动抽汽门
motor-operated gate valve 马达操作闸阀
motor operated control valve 电动调节阀
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Motor OPERATED valve, a valve using an electric motor for opening, closing and modulation.
马达操作活门，用电马达来开，关和调制的活门。
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