发布时间:2025-02-04 19:00:05
水槽体积为4000立方厘米,流量为30x3.14=94.2平方厘米,装满水槽所需时间=4000/94.2=42.5s<50s 所以可以装满
你好我家客厅是正方形的 6米6米的中间有个梁 高度三米 不想吊顶了 如何美化这个梁 谢谢
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