double-plunger pump duplex plunger pump的意思|示意

美 / / 英 / /

双柱塞泵双柱塞泵

双柱塞泵 ... force pump， plunger pump 柱塞泵 double-plunger pump duplex plunger pump 双柱塞泵 pump plunger shaft 泵柱 ...