electron-positron collider

The engineering of the electron-positron collider that we have completed also ranks among the world 's most advanced technologies .

我们的正负电子对撞机工程在全世界也是居于前列的。

The cryogenic transfer lines are main facilities in the cryogenic system of Beijing Electron-Positron Collider Upgrade ( BEPC ⅱ) .

低温传输管线是北京正负电子对撞机重大升级改造（BEPCⅡ）中低温系统的关键设备之一。

Environmental radiation from the Beijing Electron-Positron Collider during the beam adjusting operation

北京正负电子对撞机调束运行期间的环境辐射

Control on unevenness of main tunnel floor of the Beijing electron-positron collider project

北京正负电子对撞机主隧道地面不平度的控制

Analysis of ihe impact of Beijing Electron-Positron Collider on the environmental radiation

北京正负电子对撞机对环境辐射影响的分析

As for the electron-positron collider , first I want to tell you a story .

说起我们这个正负电子对撞机工程，我先讲个故事。

The BES experiment at BEPC electron-positron collider has seized the opportunity and made its remarkable contribution .

在北京正负电子对撞机上开展的BES实验，抓住机遇，作出了贡献。

In the country " long march on the2nd ," strap-on rockets , nuclear submarines and electron-positron collider , there are Yueqing components produced .

在国家“长征二号”捆绑式火箭、核潜艇和正负电子对撞机中，都有乐清生产的配件。

The success of China 's first high-energy accelerator Beijing electron-positron collider evoked strong repercussion in domestic science and technology circles and also created a stir in the international high-energy physics .

我国第一台高能加速器北京正负电子对撞机一次对撞成功的消息，在我国科技界引起强烈反响，并在国际高能物理学界引起轰动。

Many renowned highenergy physicists in the world said that the success of Beijing electron-positron collider was a great progress in scientific development of China and also a milestone in the development of high-energy physics .

许多在世界上享有盛誉的高能物理学家说，北京正负电子对撞机对撞成功是中国科学发展的伟大进步，是高能物理发展的一个里程碑。

A numerical model for the liquid helium discharge process from control dewar is presented , which is under shut-down condition of the SRF cooling system in Beijing Electron-Positron Collider Upgrade ( BEPC ⅱ) .

本文针对北京正负电子对撞机重大改造项目（BEPCⅡ）中的超导腔冷却系统，得到了制冷机停机工况下供液杜瓦非稳态供液过程数学模型。

The compressor control of cryogenics system in Beijing Electron-Positron Collider Upgrade ( BEPCII ) superconductive radio frequency cavity ( SRF Cavities ) will affects directly the performance of the refrigerator , the working stability of the SRF cavities and the power consumption of the compressor .

在BEPCII超导腔低温系统中，压缩机控制的优劣直接关系到制冷机制冷性能的高低、压缩机耗能的多少以及超导腔能否稳定运行。