送交者: skipper3 于 2005-5-23, 17:32:16:

回答: 请教一下，物理学的不行， 由 coubert 于 2005-5-23, 15:12:40:

飞机在高空怎么飞的，
>> same as at 低空
高空空气很稀薄，
>> yeah, but modern jet engine has a huge intake fan that sucks and compresses enough air to allow it operate properly.
飞机在真空中也能飞吗？
>> no, teh engine needs air.

• 谢谢了，我明白了。 - coubert (0 bytes) 2005-5-23, 23:42:13

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