POS can supply more precise mathematical model to analyze the off-line power flow, stability and faults of the power system.
POS提供了更为精确的数学模型来离线分析电力系统的潮流、稳定性和故障。
For the use of off-line switching mode power supply IC, an internal power supply circuit combining with a high voltage startup current source is proposed.
结合高压启动恒流源设计了一种用于离线式开关电源的内部电源电路。
When used or the ground line is charged, cutting off the power supply of the electric heating tube, the personal safety can be protected in the environment of adverse grounding.
在使用时或地线带电时切断电加热管电源，对接地不良的环境下使用饮水机时的人身安全得到保护。
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