The cause of the improper trip of 4 pole circuit breaker was analyzed. A subsidiary power voltage is applied to solve the problem. It is proved in practice that this measure is feasible and effective.
分析了4极断路器非正常跳闸的原因，提出采用施加外接辅助电源电压的解决措施。
2
Faced to the domestic trouble and foreign invasion, our commercial Banks actively seek new profit growth pole and develop intermediary business greatly to become their important measure.
面对内忧外患，商业银行积极寻求新的效益增长点，大力发展中间业务成为其重要举措。
3
You look as if you were deprived of parents, or intended to measure the depth of sea with a bamboo pole.