870| 9
|
钢丝能焊自己吗? |
| ||
点评
电流是走电阻小的路而不是近路。导体自身电阻更小。
| ||
| ||
小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-11-12 02:49 , Processed in 0.057337 second(s), 17 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.