发布时间:2025-01-16 22:04:02
因为缝是用白水泥填的,白水泥没有防霉的功能,要不变色下次用塑钢泥好了,,门是回潮而成的,特别是外墙门最易受潮
用in4007二极管做的整流电路有什么参数要用什么样的整流桥堆才可以替换
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