atom
英 [ˈætəm]
美 [ˈætəm]
n. 原子
复数：atoms
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- the splitting of the atom
原子的分裂 - 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。
- the splitting of the atom
柯林斯词典
- N-COUNT 原子
Anatomis the smallest amount of a substance that can take part in a chemical reaction.- 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。
- A methane molecule is composed of one carbon atom attached to four hydrogens.
英英释义
noun
- (nontechnical usage) a tiny piece of anything
- (physics and chemistry) the smallest component of an element having the chemical properties of the element
双语例句
- Neutrons and protons are bound together in the nucleus of an atom.
在原子核里，中子和质子是结合在一起的。 - The V2 was not an ordinary weapon: it could only be used against cities. Likewise the atom bomb.
V2火箭并非普通武器：它只能用于对付城市。原子弹也是这样。 - The power of the atom can be used to produce electricity.
原子能可以用来发电。 - Ion: Atom or group of atoms with one or more positive or negative electric charges.
离子：带有一个或多个正电荷（阳离子）或负电荷（阴离子）的原子或原子团。 - 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。 - There isn't atom of sense in what you say.
你所说的话没有道理。 - An atom normally contains equal numbers of electrons and protons.
原子在正常情况下含有数目相等的电子和质子。 - 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。 - So there's one electron in each hydrogen atom.
所以每个氢原子中有两个电子。 - This simple molecule consists of one oxygen atom and two hydrogen atoms.
这个简单的水分子由一个氧原子和两个氢原子构成。