atom

英 [ˈætəm]

美 [ˈætəm]

n.  原子

复数：atoms　

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Oxford 3000 / Collins.2 / BNC.4241 / COCA.5184

牛津词典

noun

• 原子
  the smallest part of a chemical element that can take part in a chemical reaction
  1. the splitting of the atom
     原子的分裂
  2. Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
     两个氢原子和一个氧原子结合组成一个水分子。

柯林斯词典

• N-COUNT 原子
  Anatomis the smallest amount of a substance that can take part in a chemical reaction.
  1. A methane molecule is composed of one carbon atom attached to four hydrogens.
     甲烷分子由1个碳原子与4个氢原子构成。

英英释义

noun

• (nontechnical usage) a tiny piece of anything
  Synonym:moleculeparticlecorpusclemotespeck
• (physics and chemistry) the smallest component of an element having the chemical properties of the element

双语例句

• A molecule of ammonia is made up of one atom of nitrogen and three atoms of hydrogen.
  氨分子包含一个氮原子和三个氢原子。
• A negative ion is an atom which has gained one or more extra electrons.
  获得一个或多个额外电子的原子称为负离子。
• There isn't atom of sense in what you say.
  你所说的话没有道理。
• The power of the atom can be used to produce electricity.
  原子能可以用来发电。
• An atom itself is a complete whole, with its electrons, protons and neutrons and other elements
  一个原子本身就是一个完整的整体，包括电子、质子、中子及其他元素。
• His theory of atom was not sufficient for treatment of large atoms or molecules.
  他的原子理论用于处理大的原子和分子是不能令人满意的。
• Each of the four valency electrons of the carbon atom is shared with one of a hydrogen atom.
  碳原子的四个价电子都各与氢原子的一个价电子共用。
• A methane molecule is composed of one carbon atom attached to four hydrogens.
  甲烷分子由1个碳原子与4个氢原子构成。
• He patented the idea that the atom could be split
  他获得了“原子可以再分”这一概念的专利权。
• We utilize the atoms interact resonantly with a single-mode cavity, and introduce an auxiliary atom.
  提出了一个利用单模腔场和原子的共振相互作用制备团簇态的方案，并引入了辅助原子。