Why? Bundle of properties: mechanical strength, chemical inertness, ease of fabrication: that's not a unique solution.

为什么，属性的总和：,机械强度，化学惰性，易于制造，那不是独特的解决方法。

麻省理工公开课 - 固态化学导论课程节选

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。

麻省理工公开课 - 固态化学导论课程节选