发布时间:2025-02-02 21:02:36
家里铺地砖,最科学和专业的计算方法是求面积,因为地砖的也是按面积来进行计算而设计,整个家庭装修的铺设也必须以面积为单位进行设计和物料计算,才更为的合理科学
过几天钳工考试给一块10mm厚的钢板长宽80mm顶端要开个90度直角顶上两个边20mm
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