lever arm

• 杠杆臂

lever arm的用法和样例：

例句

1. The force required depends on the length of the lever arm used.
   所需的力取决于所使用杠杆臂的长度。
2. The swaying movement and the lever arm effect error are two major factors affecting the alignment accuracy of shipbased weapons.
   摇摆运动及杆臂效应误差是影响舰载武器系统对准精度的主要因素。