发布时间:2025-02-03 04:44:26
你好:
1、任何家用电器的开关,都应该【控制火线】,排风扇的两根线,一根直接接零线,另一根接开关。
2、排风扇一般不需要区分火线和零线的。
现在许多毛衣上的成分都说含羊毛怎么辨别出是否真的是羊毛毛衣呢
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