我们的正负电子对撞机工程在全世界也是居于前列的。
The engineering of the electron-positron collider that we have completed also ranks among the world's most advanced technologies.
北京谱仪是北京正负电子对撞机上的高能物理实验装置。
Beijing Spectrometer (BES) is an experimental facility of high energy physics on Beijing Electron Positron Collider (BEPC).
北京正负电子对撞机(BEPC)是用于高能物理研究的国家重点实验室。
Beijing Electron Positron Collider (BEPC) is the State Key lab of our country in high physics research.
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