发布时间:2025-02-01 07:28:39
你把桥墩的柱子用纸张折成三角状,这个桥柱子从侧面看应该是个梯形,因为
桥墩的最大承重力就应该是个三角状,柱子最下面接地面的横截面越宽,桥墩的承重力就越大,梯形越高,柱子底下接地面的就要越宽越好,这样做的话,应该就可以了望
我想在阳台贴瓷砖我想贴和厨房一样300450mm的瓷砖瓦工来建议我贴用防冻的小瓷砖
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