剥皮
发表于 2025-3-26 22:12:04
6楼
仔细检查
发表于 2025-3-27 02:06:34
6楼
HIKE
发表于 2025-3-27 07:18:56
7楼
臭了生气
发表于 2025-3-27 10:13:34
7楼
缓解
发表于 2025-3-27 13:49:59
7楼
枫树
发表于 2025-3-27 20:46:22
7楼
agonist
发表于 2025-3-27 23:46:18
8楼
倔强不能
发表于 2025-3-28 05:57:59
http://reply.papertrans.cn/36/3519/351837/351837_38.png
maverick
发表于 2025-3-28 07:44:40
http://reply.papertrans.cn/36/3519/351837/351837_39.png
Outwit
发表于 2025-3-28 11:13:33
https://doi.org/10.1007/978-3-7908-1887-1 the solids are composed, to make things easier, however, the solid bodies can be supposed (as is usually done in mathematics) to be absolutely hard and rigid. They can also be supposed to be deprived of any resistance, indifferent to movement and unimpeded by the density of air.