这样做的好处是，一旦某一线路发生短路或其他问题时，停电的范围小，不会影响其他几路的正常工作。

The advantage of this is that once a short circuit or other problems occur, the scope of the power outage is small, will not affect the normal work of other roads.

youdao

由电孤启动到正常工作这段时间，电网线路的电流电压波动性较大，往往给电路其它各元件造成强烈的冲击。

From starting-up to stabilization of the arc, the electric current and voltage usually fluctuate acutely, which makes a great impact on other circuit components.

youdao

井道的机械工作，轿厢，电气零部件的安装，控制柜等必须在第一次正常运行前完成。 电气线路亦须完成及检查。

The mechanical works of hoistway and cabine as well as the electrical installation in the hoistway and controller have to be finished to guarantee runs in normal mode.

youdao

It looks like we're still figuring out - this room was just renovated, we're still working out exactly how the electronics work. So normally we'll see a percentage of how many of you got it, but I'm going to say it was probably about 95% got the answer right.

这个房间刚刚装修过,我们还在试图搞明白，这些线路怎么工作的,如果正常的话,我们可以看到，你们回答正确的百分比，但我觉得你们,95%的人答对了。

麻省理工公开课 - 化学原理课程节选