Each behavior does not have its own independent circuit. 不是每種行為都有它自己的獨立的回路。
This kind of lighting system was one in which lights were connected in a series circuit, so if one failed, the whole circuit failed. 這種照明系統是把光源連結到一圈一圈的回路之上，所以如果有一個(gè)循環(huán)壞掉了，那么整個(gè)設備也壞了。
滬公網(wǎng)安備 31011502000490號
電信業(yè)務(wù)許可證編號：滬B2-20190700
