I didn't have any money so I had to call reverse-charge.

我那时没钱，所以只好打对方付费电话。

Batteries are good at storing large amounts of charge but slow at delivering it; for capacitors the reverse is the case.

电池能够很好地储存大量电能，但传导很慢；电容器却正好相反。

To facilitate the fishing or recovery operation, the backoff is usually accomplished by applying reverse torque and detonating an explosive charge inside a selected threaded connection.

为进行打捞或回收钻柱，通常的卸开作业总是采用反扭矩，和在所选用的丝扣连接内引爆炸弹。

Our work mainly focus on the improvements of reverse recovery charge and gate charge which impact much on high speed switching and high efficiency performance of a VDMOSFET.

本项目主要针对影响器件开关速率和高效性能的反向恢复电荷、栅电荷进行优化和改进。

The movement of charge across the current source produces a voltage, which rises until a balancing reverse current appears.

电荷穿过电流源的移动产生了电压，该电压上升到出现了平衡反向电流为止。