打开App
360P
都说指针表黑表笔为正红表笔为负，那为何插孔位置红表笔标的正？
本期视频，给大家分享指针表两个表笔的极性
指针万用表，详细介绍，全套视频12/15
App03:59
App04:05
App03:18
App03:45
App05:00
App05:40
App06:53
App05:46
App03:00
App03:35
App04:24
App04:19
App05:36
App08:36
App05:43本期视频，给大家分享指针表两个表笔的极性
App03:59App04:05App03:18App03:45App05:00App05:40App06:53App05:46App03:00App03:35App04:24App04:19App05:36App08:36App05:43
