circuit, open造句

• According to the rule of mine safety regulations , an intrinsically safe pilot circuit with perfect performance for underground motor intelligent protective systems is put forward , which can effectively avoid the phenomenon of self - starting that is caused by the earthing of control lines before starting motors , at the same time , can reliably cut off the switches to ensure the safety of underground production under operation condition no matter what the faults of short circuit , open circuit and earthing in the control circuits happened
  根据煤矿安全规程规定设计了性能完善的本质安全型先导电路，起动前它能有效地防止因控制线接地造成自起动现象的发生，而且在运行中无论控制线发生短路、断线还是接地故障，它均能可靠跳闸，确保生产的安全，该先导电路的性能指标达到了国内领先水平。