发布时间:2025-01-30 03:46:10
其实怎么穿都可以,只是在穿线前,要把每段线管需要穿过的电线根数计算好,以便一次穿过,如果要补穿,那就很麻烦了。
只要电路允许,一根线传到底也是可以的,(实际最少是两根线,一火线、一零线)只是在需要接头的地方留出一个U型圈即可,以便将来接线用
家长多年来没给孩子准备写作业的书桌,平时孩子都是在饭桌写的,算失职吗
2025-01-30 03:46:10 2025-01-30 03:46:10 2025-01-30 03:46:10 2025-01-30 03:46:10 2025-01-30 03:46:10 2025-01-30 03:46:10大豆油要去除掉很多有害物质才能食用如果直接吃煮熟的大豆是否有害
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