rotary screw pump

• 螺杆泵

rotary screw pump的用法和样例：

例句

1. Torsion and rotary speed real measuring curve of three oil wells are also presented.
   为螺杆泵采油系统的工况实时监测与故障诊断提供了技术手段。
2. This method bears preferable practicality for track coordinates calculation of moulding milling cutters used for machining the screw rotor in the screw pump.
   该方法对加工螺杆泵中螺杆转子的成型铣刀轨迹坐标计算具有较好的实用性。