displacement metering device with 3-degree of freedom

例句：

1. 1. The displacement metering deviceis used to measure the displacement of apiston in a cylinder.
   位移计量装置用于测量活塞在气缸中的位移。
2. 2. The displacementmetering device is essential for ensuring accuratemeasurement of fluid flow.
   位移计量装置对于确保流体流量的准确测量至关重要。
3. 3. The displacementmetering device can be used to monitorthe performance of various machinery systems.
   位移计量装置可用于监测各种机械系统的性能。