4739| 20
|
[求助] 根据GB 51309-2018室外配电房备用照明、应急照明如何设计 |
本帖被以下淘专辑推荐:
| |
| ||
点评
想想都可笑
| ||
| ||
| ||
| |
| ||
| ||
点评
出直流的不叫变压器
| ||
| ||
| ||
|小黑屋|手机版|Archiver|《建筑电气》杂志官方论坛
( 蜀ICP备06020337号-1 )
GMT+8, 2021-3-3 10:20 , Processed in 0.060370 second(s), 33 queries .
Powered by Discuz! X3.4
© 2001-2017 Comsenz Inc.