In this paper, variations of AE-D's perigee altitudes, the corresponding atmosphericexpansion and the density distributions are analyzed.
本文分析了AE D极轨卫星近地点的变化及其相应的大气膨胀和密度分布情况。
2
Compressed air of the energy is provided by a certain way to let the compressed air expansion to atmospheric pressure state and of generation.
压缩空气所提供的能源是采用一定的方式让压缩空气膨胀至常压状态而产生的。
3
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospheric hot water heating boiler room are discussed.