費密子一種如電子、質(zhì)子或中子等自旋為半整數的基本粒子，具有一種使得不可能有多于一個(gè)的粒子占有任何一個(gè)特殊的量子力學(xué)態(tài)的量子力學(xué)對稱(chēng)性
A particle, such as an electron, a proton, or a neutron, having half-integral spin and obeying statistical rules requiring that not more than one in a set of identical particles may occupy a particular quantum state.
非特定的代表某一種類(lèi)的所有成員或其中一個(gè)的；不標志唯一存在的
Representing one or all of the members of a class; not designating a unique entity.
他克服了一個(gè)又一個(gè)的困難以后才得脫身。
He managed to cash in only after overcoming one difficulty after another.
