up quark meaning in English
上夸克
Examples
- It doesn t mean that the up quark has any " up " property
这些只是名字，例如上夸克没有甚么上的性质。 - Proton is , in turn , made up of two up quarks and one down quark . neutron is made up of two down quarks and one up quark
质子的内部是三粒夸克：两粒上夸克和一粒下夸克uud中子的内部也是三粒夸克：一粒上夸克和两粒下夸克udd 。