This paper mainly discussed the important role of symmetrical principle on atom structure and chemical bond.

本文主要阐述了对称性原理在原子构造中和化学键中的重要作用。

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Under this high temperature, the carbon atom structure changes, has produced quantity different graphite crystal.

在这高温下，碳原子的结构发生变化，产生了数量不等的石墨晶体。

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We should make the lastest discoveries about the atom structure available to all engaged in the relevant research.

我们应该把原子结构的最新发现让所有从事有关研究的人都能参阅。

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So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.

对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。

麻省理工公开课 - 化学原理课程节选

Step three in our Lewis structure rules is to figure out how many electrons we would need in order for every single atom in our molecule to have a full valence shell.

路易斯结构规则的第三步是,找出让分子中每个原子的价壳层,都排满应该需要多少个价电子。

麻省理工公开课 - 化学原理课程节选

What did we know at the end of the 19th century about the structure of the atom?

在19世纪末,关于原子结构我们了解多少呢？

麻省理工公开课 - 固态化学导论课程节选

Like the way the structure of an atom resembles the structure of galaxies.

FORBES: Moms Want Full Time Work

This means there is a greater chance of their meeting one another, allowing an extra atom to fill a hole and restore the crystal structure.

ECONOMIST: New materials for renewable energy

He can draw from memory the precise structure of almost any drug, dissecting their flaws and attributes atom by atom.

FORBES: The Chemical Cobbler