1·Use a 5v external power supply.
使用一个5 V外部电源。
2·Work without external power, energy saving.
工作时不需外界动力，节省能源。
3·It protects PCB from power surges from external power supply.
它从电源保护电路板由外部电源浪涌。
4·None of the circuits requires the use of external power switches.
所有的这些电路都不需要外部的功率开关。
5·It requires no external power sources, thereby reducing operation costs.
无需额外动力，节省运行成本。
6·The earthquake destroyed the external power supply of the nuclear reactor.
地震摧毁了核反应堆的外部供电。
7·The channel is the most essential external power when an enterprise grows.
营销渠道是企业成长过程中最关键的外部动力。
8·I told her laptop external power supply will disconnect the battery and removed it.
我告诉她将笔记本电脑外接电源断开并将它的电池取掉。
9·To fully charge a drained battery, connect the unit to external power for six hours.
若想将已耗尽的电池充到饱，请将机组连接外部电源达六小时。
10·Note that as long as the external power supply is active, the GND pin may not be floating.
注意，只要外部电源提供是活跃的，GND别针可能不漂浮。