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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
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
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
A plasma globulin of high molecular weight. 大球蛋白细胞分子中较重的血球蛋白
To participate in annihilation, as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
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
To participate in annihilation,as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
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
PALC is a mixture of AMLCD and plasma. PALC是有源矩阵液晶和等离子体的结合。
The precursor or stem cell of a plasma cell. 成浆细胞浆细胞的前体细胞或干细胞
This creates, as it were, electron and positron shadows. 这样也就有了电子和正电子的阴影。
An electron tube having a cathode and an anode. 电子二极管有一个阳极和一个阴极的电子管
Plasma in space are collision free. 空间中等离子体是无碰撞的。
Positron is how it was detected by ? 正电子是如何被检测出来的呢？
The blood plasma lipid examination was abnormal. 血浆脂质出现不同程度的异常变化。