音標發(fā)音英式音標 [?p?z.?.tr?n]美式音標 [?pɑ?.z?.trɑ?n]英式發(fā)音 美式發(fā)音 基本解釋n.正電子同根派生 positron相關詞英漢例句用作名詞 (n.)The result is that the electron shadow and the positron shadow are separated.結果將使得電子的陰影和正電子的陰影被分開。The vacancy defects of samples were measured by slow positron annihilation.借助慢正電子湮沒技術研究了樣品的空位型缺陷。positron更多例句英英字典劍橋英英字典 an extremely small piece of matter with a positive electrical charge, having the same mass as an electronpositron劍橋字典positron柯林斯字典