helical type pump

• 螺旋式泵

helical type pump的用法和样例：

例句

1. Centrifugal pumps are the most common pump power.
   离心泵是最常见的动力式泵。
2. The Company produced all kinds of vehicles pump-pump, pump Tuobeng tubes, and other parts, construction machinery and equipment leasing.
   本公司生产各种车式泵泵管，拖泵泵管，及其他零部件，并可租赁建筑机械设备。