环境技术联盟(AET)是由北美的化学制造商和森林产品公司组成的联盟。

The Alliance for Environmental Technology (AET) is an association of chemical manufacturers and forest product companies in North America.

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中山市当前主要有五大支柱产业：纺织服装、机械电气、电子通讯、金属制品、化学制造。

Now the city has five backbone industries: spin costume, engine electric, electrommunication, metal goods, chemistry goods.

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研究报告综合这两项研究结果，强烈呼吁对广泛用于塑料制造的化学制剂实行更加严格的管理。

Taken together, the findings strengthen calls for tougher regulation of the chemical, which is widely used in plastics manufacturing.

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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

So, practitioners who understood what we would know to be chemistry were highly valued in that society. And then, you may expand it to other chemical processes, dyeing of cloth, glassmaking, and metals extraction.

所以，理解我们所知为化学的,先行者们，在那个社会是,非常宝贵的，当时，你可能将其扩展到另一个化学过程，如布料的染色，玻璃的制造，还有金属提取。

麻省理工公开课 - 固态化学导论课程节选

So if you're trying to make a more complicated organic molecule carbon-carbon bonds are one of the most difficult things to make in organic chemistry, and it turns out that c n minus is a very reactive molecule, so it's a good way, even though we'll go over some drawbacks in a second, it is a good way to make carbon-carbon bonds.

如果你要合成一个更复杂的有机分子,碳碳键是有机化学中,最难制造的键之一，而实际上氰离子是一种具有很高活性的分子，用它是一个好办法，尽管我们一会儿将看到它的一些缺点，但它的确是一个制造碳碳键的好方法。

麻省理工公开课 - 化学原理课程节选