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- THE EXACT SOLUTION OF DIRAC EQUATION UNDER A CONSTANT UNIFORM ELECTRIC FIELD AND THE ELECTRON POSITRON PAIR CREATION RATE IN VACUUM 均匀电场中Dirac方程的严格解和真空中正负电子对的产生率
- electron positron pair 电子正电子对
- Beijing Spectrometer (BES) is an experimental facility of high energy physics on Beijing Electron Positron Collider (BEPC) . 北京谱仪是北京正负电子对撞机上的高能物理实验装置。
- This paper describes the possible radiation sources and their characteristics around 3W1 beamline of Beijing Electron Positron Collider (BEPC). 介绍了北京正负电子对撞机同步辐射实验西厅3W1光束线周围辐射的来源和特点、辐射测量方法及测量结果。
- proton electron positron colliding beams 质子 电子 正电子碰撞束
- large electron positron storage ring 大型电子正电子对撞机
- Beijing electron positron collider(BEPC) 北京正负电子对撞机
- I bought a pair of tan leather shoes the other day. 前几天我买了双棕褐色的皮鞋。
- Beam-beam deflection effect in Beijing electron positron collider 北京正负电子对撞机中的束束作用偏转效应
- Don't mix up this pair of synonyms. 别把这两个近义词混淆了。
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- He wears an oily old pair of jeans. 他穿着一条沾满油污的旧牛仔裤。
- This pair of scales is not in equilibrium. 这个天平不平衡。
- This pair of trousers is too tight for me. 这条裤子我穿太紧了。
- She splashed out on a new pair of shoes. 她心血来潮买了一双新鞋。
- The newly married couple are really a happy pair. 那对新婚夫妇真是快乐的一对。
- Billy has a pair of new trousers. 比利有一条新的裤子。
- A new pair of shoes wouldn't come amiss. 新鞋不会不称心的。
- This small animal has a pair of hazel eyes. 这只小动物有一双淡褐色的眼睛。
