与法国液化空气公司类似的一家工业用气公司正在研制如何利用太阳能产生氧气。
At night the pilot descends slowly, carefully using up the power until dawn.
夜晚时,飞机缓缓下降,在黎明前用尽所有燃料。
Once the sun returns the batteries can recharge in three hours as the plane ascends again.
当太阳升起时,电池会在三个小时内充满,然后飞机便再次起飞。
Landings are also left until the early evening, when winds are light.
同起飞一样,降落也挑选在风速平稳的傍晚。
The flight across America will give the team s meteorologists an opportunity to see howtheir weather models stand up.
飞越美洲的航行也可以验证团队中气象学家的天气模型是否成立。
Sometimes it is necessary for the pilot to delay a landing to wait for optimum conditions.
有时,飞行员必须延迟降落时间以寻求最佳时机。
Mr Piccard and Mr Borschberg have learned an interesting technique to do that.
皮卡德和博尔施伯格用一种有趣的方式进行观察。
Flying slowly, they turn the nose into a headwind, which can make the aircraft flybackwards.
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