In this process the nucleus breaks up into two intermediate-sized nuclei.
在这种过程中，那个原子核分裂成两个中等大小的核。
Nuclear energy can be obtained by breaking up the nuclei of the heaviest atoms such as those of uranium.
通过分裂最重的原子核，如铀的原子核，就可以获得核能。
a self-sustaining nuclear reaction; a series of nuclear fissions in which neutrons released by splitting one atom leads to the splitting of others.
一种自我维持的核反应；一个原子分裂后释放的中子引起其他原子分裂的一系列核裂变过程。
Many of the heaviest nuclei can be induced to break up into two fragments of intermediate size, a process called nuclear fission.
许多最重要的原子核能被诱发分裂为两块大小适中的碎片，这一过程称为核裂变。
We can use the heat from breaking the nucleus of atoms in place of burning oil or coal.
我们可以利用分裂原子核所获得的热能来代替燃烧石油或煤炭。
We can generate electric power by splitting atoms.
我们可以利用原子核裂变发电。
When atoms split, the process is called "fission".
原子分裂时，其过程被称为“裂变”。
The model of the Min poteins movement in bactefia cell division;
Min蛋白在原核细胞分裂中的运动模式
Study on Negative Ions Collisions with Atoms Molecules and Nondestructive Detection of Cylindrical Nuclear Materials;
负离子与原子分子碰撞实验研究和圆柱体裂变材料核装置无损探测
Collectively, these two constituents of nuclei are known as nucleons.
这两种原子核的组分统称核子。
a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element (uranium 235 or plutonium 239)).
一种由原子核（裂变重元素（铀或钚）的原子核）裂变释放巨大能量的武器。
The energy produced during atomic nuclear fission is great enough to destroy the whole city.
原子核裂变时产生的能量足以摧毁整座城市。
To add nonfissionable matter to(fissionable material)so as to prevent use in an atomic weapon.
使（核材料）中毒（向可裂变材料中）加入不可裂变物质以防止（这种可裂变物质）用于原子核武器
a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy.
一个大的核子分裂为众多小核子并伴随能量释放的核反应过程。
When an atom of U235 is split,several neutrons are set free.
一个铀235原子分裂时,释放出几个中子。
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。
The Nuclear Shell Model and Its Application to the Nuclear High-spin States;
原子核壳模型及其对核高自旋态分析
Analysis of the Cause of Shear Wall Cracking on the Core of Leatop Plaza and Study on Crack Control
利通广场核心筒剪力墙裂缝形成原因分析及裂缝控制研究