太空升降机背后的核心理念包括降下一根电缆——也许是由小行星材料制成的，——从对地静止轨道到地球表面。
The central idea behind a Space Elevator involves lowering a cable — perhaps constructed from asteroid material — from geostationary Earth orbit to the surface of the Earth.
以低加速度从航天飞机的低地球轨道转移到对地静止轨道，需要有限多次点火。
Finite multiple burn method is used for the transfer from Space Shuttle low earth orbit to the geostationary orbit with low accelerations.
阐述了利用对地静止轨道GEO卫星链路接入因特网的特点，介绍了目前为解决卫星链路时延长带来的问题所采用的一些方法。
This essay describes the characteristics of access to the Internet using GEO satellite links and the methods used to solve problems caused by long delay of satellite links.
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