pair formation

英 美
  • 偶形成
  • formation n.形成;队形;编队;构造;[地]地层
  • pair n.一对;一双;一副v.(使)成对;(使)配对
Noun:
  1. the transformation of a gamma-ray photon into an electron and a positron when the photon passes close to an atomic nucleus

【邻近词汇】