balance condition

• 平衡条件

balance condition的用法和样例：

例句

1. The condition of equilibrium of the member requires that the pair of forces coming from the joints must be equal and opposite.
   元件的平衡条件要求来自连接点的一对力必须大小相等，方向相反。
2. The coupling matrix is given by the interface displacement compatibility condition and the interface force equilibrium condition.
   组合矩阵由交界面位移连续条件和交界面力的平衡条件给出。