In 1938, it was discovered that when nuclear particles called neutrons were fired at uranium atoms, they would split, or break in two.
1938年，人们发现，当被称为中子的核粒子撞击铀原子时，铀原子会分裂或破裂成两半。
Nuclear particles
原声例句
6 Minute English 六分钟英语
CRI在线 2022年12月合集
The U. N.'s nuclear watchdog has sent a delegation to the Iran's capital, aiming to clarify outstanding issues linked to the nuclear particles discovered at Iranian nuclear sites.
联合国核监督机构已派出一个代表团前往伊朗首都，旨在澄清与在伊朗核设施发现的核粒子有关的悬而未决的问题。
中文百科
次原子粒子 Subatomic particle
（重定向自Nuclear particles）
次原子粒子，或称亚原子粒子。是指比原子还小的粒子。例如：电子、中子、质子、介子、夸克、胶子、光子等等。
英语百科
Subatomic particle 次原子粒子
（重定向自Nuclear particles）
In the physical sciences, subatomic particles are particles much smaller than atoms. There are two types of subatomic particles: elementary particles, which according to current theories are not made of other particles; and composite particles. Particle physics and nuclear physics study these particles and how they interact.