the branch of physics that studies the internal structure of atomic nuclei.
物理学中对原子核心内部结构的研究。
a center called a nucleus
一个称为原子核的中心
There is a nucleus at the center of an atom. Around this nucleus revolve electrons.
在原子中心有一个原子核，环绕这个原子核旋转的是电子。
The atom has a central part called nucleus. Circling the nucleus are electrons.
原子有一个中心部分，称为原子核。环绕原子核运动的是电子。
Just as the sun is the central body of the solar system, so the nucleus is the core of the atom..
正象太阳是太阳系的中心天体一样，原子核是原子的核心。
A proton or a neutron, especially as part of an atomic nucleus.
核子质子或中心，尤指作为原子核的一个组成部分
neutron number
【原物】(核内)中子数
Spassky's expertise is the package, the nuclear core itself.
斯帕斯基的特长的封装 原子弹的核心技术
The positively charged central region of an atom, composed of protons and neutrons and containing almost all of the mass of the atom.
原子核原子的正极中心部分，由质子和中子构成，几乎集中了原子的全部质量
Having one nucleus.
单核的有一个原子核的
Hypernuclei are similar to nuclei.
超核和原子核是一样的。
Of or relating to atomic nuclei.
原子核的或关于原子核的
Existing or acting outside the nucleus of an atom.
原子核外的出现或行动于原子核外的
During this stage the Sun "burns" hydrogen in its core, combining hydrogen atoms into helium atoms in a process of nuclear fusion.
这一时期太阳在它的核心“燃烧”氢，将氢原子通过核聚变结合成氦原子。
Using or derived from the energy of atomic nuclei; atomic.
原子核能的利用原子核能的，由原子核能中得出的；原子能的
meson-nucleus interactions
介子－原子核相互作用
one-particle model of nucleus
原子核的单粒子模型
core promoter element
核心启动子元件，启动子核心元件