celestial axis,line shaft是什么意思

用法例句

The value of friction torque and its fluctuation property are main factors which influence the performance and precision of aerospace bearings.

摩擦力矩的大小和波动性是影响航天轴承性能和精度的主要因素。

The friction torque and its wavy property are the main factors influencing the properties and accuracy of space bearings.

摩擦力矩的大小和波动性是影响航天轴承性能和精度的主要因素。