... Economical quantities 经济数量 converted quantities 已转换数量 Completed Quantities 完成工程量 ...
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If water exists in the quantities that Nasa now believes, it could be drunk by astronauts, turned into oxygen to make stations inhabitable and – most excitingly – converted into fuel.
美国宇航局相信，如果有足够的水，就可以供宇航员饮用，就可以转化成氧气，使基地适合居住，并且 更令人兴奋的是，可以被转化成燃料。
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