equilibrium ball charge

例句：

1. 1. The balanceof the system is critical for its stability.
   系统平衡对于其稳定性至关重要。
2. 2. The equilibrium ball charge in the circuitis crucial for the operation of the device.
   电路中的平衡球电荷对于设备的运行至关重要。
3. 3. The researchers found that the equilibrium ball charge could be influenced byexternal factors.
   研究人员发现，外部因素可以影响平衡球电荷。