发布时间:2025-01-21 01:59:43
800*800=0.64个平方 34/0.64=53.125块 加损耗 34平的56块就可以了
装修工人购买了一根装饰用的木条乘电梯到小明家安装如果电梯的长宽高分别是15m15m22m那
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