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.
如果你对太空升降梯这个名词并不熟悉，那么你或许曾经听过它的一些别名：豆茎，轨道缆索，还是非同步轨道天钩。
If you're not familiar with the space elevator, perhaps you've heard it referred to by one of its other names: the bean stalk, the orbital tether, the nonsynchronous orbital skyhook.
料斗升降机是起重机械中的一种单斗提升的升降机，一般由带走轮的料斗、轨道及其支架、牵引绞车和滑轮组成。
The hopper elevator is a kind of single bucket elevator, which is composed of a hopper, a rail and a bracket, a traction winch and a pulley.
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