barrel oil pump

英 [ˈbærəl ɔɪl pʌmp] 美 [ˈbærəl ɔɪl pʌmp]

筒袋式油泵

化学



双语例句

  1. Study of the method for calculating the clearance leakage between the plunger and the barrel of oil well pump
    抽油泵柱塞与泵筒间隙漏失量计算方法的研究