发布时间:2025-01-24 11:08:57
因为剩下部分和原来的表面积都是由两个正方形和四个侧面组成,用138-98便得到了锯下的正方体的四个侧面的面积,40.正方体六个面相等,一个面就是10平方米。所以锯下的正方体表面积就是60平方米。
用pvc管连接到原来的下水口新的管子比原来的细所以连接处做了一个弯头
2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57用iphone录自己唱歌用音响放的伴奏为什么录好了听人声很大伴奏很小
2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57 2025-01-24 11:08:57