positive-displacement pump
【机械工程】具有把废气用作工作气体特点的正排量发动机装置
positive-displacement engine plant characterised by using exhaust gas as working gas
暂无补充释义。
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positive-displacement engine
positive-displacement type water meter
positive-displacement machine or engine
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gas positive-displacement engine plant
hot gas positive-displacement engine plant
seat-valve gear internal-combustion piston engine, positive-displacement machine