• The French chemist Nicolas Leblanc discovered how to make soda ash from salt in the late eighteenth century.

    VOA: special.2011.03.09

  • I'm an organic chemist, so I love carbon, it's one of my favorite atoms to talk about, but it would be nice to get to the point of bonding and even reactions to talk about all the exciting things we can think about once we're at that point.

    我是个有机化学家,我喜欢碳原子,这是我最喜欢谈论的原子之一,但我更喜欢讲成键,甚至化学反应的概念,一旦到了这之后,我们就可以考虑各种激动人心的事情。

    麻省理工公开课 - 化学原理课程节选

  • A brilliant chemist.

    一个很了不起的化学家。

    麻省理工公开课 - 固态化学导论课程节选

  • The original design of the ceramic filter came from a chemist in Guatemala,Fernando Mazariegos.

    VOA: special.2009.06.22

  • N 2 So any chemist should be able to just look at n 2 and know that it's a triple bond, but that's not something that we've learned how did to do yet, so let's go ahead and start a new topic that's going to allow us to have some sort of sense of what the valence electron configuration, which includes whether something's a single or double or a triple bond can be figured out for any given molecule.

    任何一个化学家都应该能够仅仅通过看到2,就知道它有一个三键,但是我们还没学习如何做到这点,因此下面我们就开始进入一个新的主题,它将使我们能够有一定的认识,对于价电子的排布情况,包括可以对任何一个给定分子中的键是单键双键,还是三键作出判断。

    麻省理工公开课 - 化学原理课程节选

  • Today,thousands of people are glad that Stephanie Kwolek became a research chemist.

    VOA: special.2011.03.01

  • So, my final example is from Alan Davidson's lab, and Alan is an inorganic chemist -- he loved those transition metals and they're unique properties, and he designed this compound, it's called Cardiolite, Cardiolite and it's used in heart imaging.

    最后一个例子是Alan,Davidson实验室,他是个无机化学家-,他喜欢研究过渡金属,和它们的奇特性质,他设计了这种化合物,叫做。

    麻省理工公开课 - 化学原理课程节选

  • But a chemist in Texas has another idea.

    VOA: special.2009.12.01

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