发布时间:2025-01-30 02:28:48
圆柱底面其实就是一个圆,假设其底面周长是C,底面半径是r
那么圆柱底面周长C=2*π*r,则,底面半径r=C÷2÷π
农村自来水山里来的,水压上不去三楼,抽上三楼水塔就脏,怎么处理
2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48有一对龙凤胎但是只有一个儿童房应该怎样设计才能满足两个孩子的需求
2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48 2025-01-30 02:28:48