太空产业化的关键是美国的航天飞机。

The key to the industrialization of space is the U.S. space shuttle.

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从20世纪60年代和70年代的阿波罗计划等早期太空计划，航天员研发了在月球上和太空中使用的物品。

In early space programs, such as the Apollo missions of the 1960s and 1970s, and in the Space Shuttle missions today, scientists developed objects for the astronauts to use on the moon and in space.

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如果我们能利用太阳能为这样的电梯提供动力，我们只需花费乘坐火箭或航天飞机旅行费用的一小部分就能进入太空。

If we could power such an elevator with solar energy, we could simply rise up into space for a fraction of the cost of a trip by rocket or shuttle.

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