We have to invent a process, a chemical extraction process that will make the production of magnesium cheaper so that we will have the opportunity to avail ourselves of energy-efficient materials.
我们必须发明出一种方法，一种化学提炼方法，能够使生产镁变得更便宜，那样我们才有机会，让我们自己用上高效能的材料。
We have to invent a process, a chemical extraction process that will make the production of magnesium cheaper so that we will have the opportunity to avail ourselves of energy-efficient materials.
我们必须发明出一种方法，一种化学提炼方法，能够使生产镁变得更便宜，那样我们才有机会，让我们自己用上高效能的材料。
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