发布时间:2025-01-16 17:40:17
占地面积=底面积=长×宽=5×3=15平方米
展开面积=表面积=2×(长×宽+宽×高+长×高)=2×(15+20+12)=94平方米
我是做施工方资料的就是关于试块的留置了送检了钢筋原材钢筋连接什么的我需要这方面的规范
2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17中学化学实验中温度计的使用分哪三种情况以及哪些实验需要温度计
2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17 2025-01-16 17:40:17