direct acting steam pump
... direct acting steam pump 蒸汽直动活塞泵 ; 直联蒸汽泵 direct pressure steam heating equipment 直压式采暖装置 direct acting steam pump coupling 蒸汽直动活塞泵联轴器 ...
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双缸串联蒸汽直动泵 duplex compound steam pump
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