hydraulically-operated valve 液压操纵阀
hydraulically-operated deluge valve 水压操作的雨淋阀
hydraulically-operated cargo valve 液压操纵货油阀
hydraulically operated direction control valve 液压操纵的方向控制阀
hydraulically operated isolation valve 液动隔离阀
Check valve hydraulically pilot operated 单向阀
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The main valve, globe or angle pattern, is diaphragm actuated, hydraulically operated.
主阀，截止阀或角阀结构，采用隔膜驱动，液压操作。
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