spiral pump

• 螺旋泵,离心泵

spiral 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. Roto-Jet Pump is a new type of high-pressure chemical centrifugal pump.
   旋转喷射泵是一种新型高压化工离心泵。