发布时间:2025-02-01 11:13:24
电缆套官的型号与电缆截面相关,也与成品外径.
一般来说,电缆的截面不得大于电缆套管的内截面40%.
电缆的截面=成品外径的平方*0.7854.
电缆套官的内截面=内径的平方*0.7854.
20平的客厅39光源选择方面39我想周围做灯箱射灯39中间不做吊灯39改为几盏射灯代替39
2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24 2025-02-01 11:13:24我租的房子里面没有厕所就在旁边的房子大小便着人家说让我全都装修了我不愿意我应该怎么办
2025-02-01 11:13:24