发布时间:2025-01-20 03:09:15
钢筋: (300*4/1000)+(1.5*4/1000)=3.6吨
混凝土:(300*4*1.2/10000米)+(1.5*4/10000米)=3.84吨
(300*4+1.5*4)*25kg/㎡=30.0吨
石头:30吨
沙子: 7.5 吨
想买个永生花盒放到家里当做装饰品但是不太方便观赏有没有永生花盒方便观赏的
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