1. 量子數(shù)的均衡從數(shù)學含義來描述對稱性的量子數(shù)＋1（偶）或－1（奇）
   A quantum number, either+1(even) or-1(odd), that mathematically describes this property.
2. 引力微子一種假想粒子，被假定為引力相互作用的量子，并被推測為具有無限長壽命、零電荷和零靜止質(zhì)量
   A hypothetical particle postulated to be the quantum of gravitational interaction and presumed to have an indefinitely long lifetime, zero electric charge, and zero rest mass.
3. 費密子一種如電子、質(zhì)子或中子等自旋為半整數(shù)的基本粒子，具有一種使得不可能有多于一個的粒子占有任何一個特殊的量子力學態(tài)的量子力學對稱性
   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.

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