hot-metal charge

例句：

1. 1.The hot-metal charge is the result of an imbalance in the electrical field.
   热金属电荷是电场不平衡的结果。
2. 2.The hot-metal charge was used to power the new device.
   热金属电荷被用来为新设备供电。
3. 3. The hot-metal charge can be detected by using a sensitive electronic detector.
   通过使用敏感的电子探测器可以检测到热金属电荷。