space object的用法和樣例：
例句
- The persistence of wind over varying intervals of time is important in the launch of space vehicles.
在不同時(shí)間間隔內風(fēng)的持續性對空間飛行器的發(fā)射量是很重要的。 - The paper introduces the launch modes and characteristics of the high speed and low speed near space aerocraft.
介紹了高速臨近空間飛行器和低速臨近空間飛行器的發(fā)射方式和特點(diǎn)。
