At these altitudes, the sun's power can quickly turn from salvation to threat.

海拔如此之高，太阳的热力很快从救星变成了威胁。

Reusable batteries charged by the sun power the Hamba and fuel it for one dollar or less.

由太阳充电的可重复使用的电池为Hamba提供动力，只需要以一美元或更少的价格就可以为其加油。

Intermittent wind and sun power creates a need for backup generators, while playing havoc with business models that justify investing in them.

风能、太阳能的间接性在搅乱专为其投资建立的商业模型的同时，也产生了对备用发电机组的需求。

The idea is to build orbiting gas stations that harness the sun's power, to split water into liquid oxygen and liquid hydrogen that would then be used for rocket fuel.

这个想法是建立利用太阳能的轨道加油站，将水分解成液氧和液氢， 然后将它们用作火箭燃料。