基本解释正電子, 氧電子同根派生 positro相关词英汉例句Keywords positron annihilation lifetime of positro annihilation Doppler broadening of positron annihilation angular correlation of positron annihilation; 關鍵詞正電子湮沒;正電子湮沒壽命;正電子湮沒多普勒展寬;正電子湮沒輻射角關聯;positro更多例句