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electron positron field 电子正电子场
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
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
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
The field artillery pounded away at the for tress. 野战炮兵连续炮击那座要塞。
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
The crowd cheered as the teams entered the field. 球队入场时观众们为之欢呼。
On the map the drains of each field are laid sown. 地图上标有每一块地的排水沟。
Right-handed batters usually hit to left field. 右撇子击球手把球打到左外野。
The runaway horse was cornered in a field. 那匹跑掉的马在田地里被圈住了。
Tent is used by camper and by soldier in the field. 露营的人和战地的士兵用帐篷。
The children had a field day with their new toys. 孩子们玩新玩具玩得十分开心。
An oil well blew out in the oil field. 油田里有一口油井发生井喷。
He is an adventurer in financial field. 他是金融领域的投机者。
The castle frowned down upon the field. 城堡呈威压之势俯视原野。
The peasants fertilize the field by using manure. 农民们施肥来使土地肥沃。