释义 |
The nucleus of a deuterium atom contains a proton and a neutron.重氢的原子核由一个质子和一个中子组成。A neutron is simply a neutral particle in the nucleus of an atom.中子就是原子核里不带电的粒子。He recognized that pulsars were the long sought-for neutron stars.他曾确认脉冲星就是苦苦寻找的中子星。 |