vertical reciprocation pump 立式往复泵
reciprocation pump in series 串联往复泵
reciprocation pump with unidirectional pistons 具有单向活塞的往复泵
Double action reciprocation pump 双作用往复泵
gas-liquid reciprocation pump 气液活塞泵
reciprocation single piston pump 往复式单缸泵
reciprocation duplex pump 往复式双缸泵
reciprocation scavenge pump 往复式扫气泵
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