rotor system alignment

• 轴系对中

rotor system alignment的用法和样例：

例句

1. Please check the alignment of shafting.
   请检验轴系对中。
2. The action of a given force system on a rigid body remains unchanged if another balanced force system is added to or subtracted from the original system.
   在已知力系上加上或减去任意一个平衡力系，并不改变原力系对刚体的作用。