That is no true, even 100km above ihorizon, there are still air

所有跟贴·加跟贴·新语丝读书论坛

送交者: steven 于 2009-11-13, 11:52:15:

回答: 真空，比如万米以上高空，估计应该接近真空了 由 coubert 于 2009-11-13, 11:40:06:

very thin, but not vacuum. Certainly not at 10km.


所有跟贴:

加跟贴

笔名: 密码: 注册笔名请按这里

标题:

内容: (BBCode使用说明)