directacting steam pump

同义词释义

1)direct-acting steam pump,直动蒸汽泵2)simplex steam pump single steam pump,U.S.A,单缸蒸汽直动泵3)duplex steam pump,双缸蒸汽直动泵4)direct acting steam pump,蒸汽直动活塞泵5)simplex steam pump,单杠蒸汽直动泵6)duplex compound steam pump,双缸串联蒸汽直动泵