• All eighty-three photographs from his famous book "The Americans" have been grouped togetherfor the exhibit.

    VOA: special.2009.03.23

  • Versus looking at, for example, helium or neon or argon, these are all inert gases, inert meaning essentially do not react, those were grouped together in the periodic table.

    相反,他发现氦,氖,氩,都是惰性气体,惰性的意思是基本不参与化学反应,因此把它们放在周期表中的同一类里。

    麻省理工公开课 - 化学原理课程节选

  • We have the students grouped according to ability, that is we have head-engine in grouping.

    我们将学生分组,根据他们的能力,因此在一个小组中有不同能力的人。

    麻省理工公开课 - 媒体、教育、市场课程节选

  • And what he did what he actually grouped things in terms of their chemical properties.

    他所做的,实际上他是根据元素的化学性质,来对它们进行归类的。

    麻省理工公开课 - 化学原理课程节选

  • - So, for example, if he was talking about the group one metals, he noticed these were all very soft reactive metals, those were grouped together.

    比如,他在讨论,I,族金属,注意到它们都是质地较软的活性金属,这些被归到一类。

    麻省理工公开课 - 化学原理课程节选

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