You had to walk from his office to the lab holding it with two hands, and not talk to anyone, Dr. Chirik recalled. The experience left him with the seed of an idea, he said. Why cant we do this with something cheaper?
On a spring afternoon at the Princeton lab, a graduate student toiled away at a glovebox, a vacuum chamber that prevents the iron from rusting. Rust is a potential downside of using iron in manufacturing, and controlling it could prove challenging and expensive. Were not talking about making a dish of spaghetti at home, Dr. Chirik said, referring to the volume of chemicals involved when doing reactions on an industrial scale. It remains to be seen, he said, whether concerns about the use of an air sensitive substance outweigh concerns about the costs and environmental impact of precious metals.
这篇关于化学家寻找点石成金的SAT文章阅读材料的故事,字数不是很多,但是非常完整,而且生词量也不是很大。大家完全可以在备考之余作为休息的时候进行阅读,只要能够长期积累下来就会有不同程度的收获的。
以上就是SAT阅读文章:A Chemist的详细内容,考生可针对文中介绍的方法进行有针对性的备考。最后预祝大家在SAT考试中取得好成绩!
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