neutron造句
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。
Neutron is neutral and slightly heavier than the proton.
中子是中性的,比质子略重.
These elements alone, however, are not quite as satisfactory for
neutron shielding.
然而, 单用这些物质来防护中子不见得十分令人满意.