测量旁观者的反应和兴趣程度，感知他人与你哪里产生共鸣，得出的反馈能让你精炼出自己的想法。
This will let you gauge the response and level of interest from other people, feel for yourself where what resonates with you, and get feedback that will enable you to refine your idea.
回收公司、精炼公司收集或购买上吨的电子垃圾和工业废料。然后利用化学反应分离不同的金属。
Recycling or refining companies either collect or purchase tons of this e-waste and industrial scraps. They then use chemical processes to separate the various metals.
钢铁制造商还广泛使用氧或富氧空气来影响同除碳和其它氧化反应相联系的化学精炼和加热。
Steel and iron manufacturers also extensively use oxygen or oxygen-enriched air to affect chemical refining and heating associated with carbon removal and other oxidation reactions.
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