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
- Superpotent atom Smashers will undertake the quark quest in the1980s.
超高效的粒子加速器将于80年代投入夸克探索的工作之中。 - 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。 - I started by saying, literally: This is an atom; this is a molecule.
我的第一堂课是这样开始的：这是一个原子；这是一个分子。 - 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。***也是这样。 - So, which atom is in need of those lone pair electrons?
那么，哪个原子需要这对孤对电子呢？ - We will consider this Zeeman effect for the hydrogen atom.
我们将对氢原子考虑此塞曼效应。 - 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。 - Water is spoken of as containing two atoms of hydrogen and one atom of oxygen.
人们说水含有两个氢原子和一个氧原子。 - 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。 - And ion, which is an atom or group of atoms with an electrical charge.
和离子，它是一个原子或原子的电荷组。