在学习这些专业的同时也要学习一些颇具挑战的学科，如化学、物理学、生物学和数学。

In these programs you will be required to take some challenging courses such as chemistry, physics, biology and math.

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它说明了对企业间沟通的可追溯性的急切的需要，其它工业，如化学和制药等也有相似之处。

This illustrates a critical need for cross-enterprise traceability, common with other industries such as chemicals or pharmaceuticals for instance.

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还回顾了一些技术方法如化学调节，生物补救和生物积累，可用于牛粪、废糖浆和蠕虫的利用。

It also reviews technical methods such as chemical interventions, bioremediation and bio accumulation, which can involve the use of cow dung, molasses and worms.

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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