steam engine reciprocating
steam engine reciprocating
往复式蒸汽机
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Reciprocating piston pump crankshaft by connecting rods connected with the original motivation. Prime mover can be motor, steam engine can also be used.
往复泵的活塞由连杆曲轴与原动机相连。原动机可用电机，亦可用蒸汽机。
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