摘要
In the field of large-capacity accelerator construction, there are two world-wide trends now evident in high-energy physicists: one is to build up high-energy ones such as the LHC (Large Hadron Collider) developed by Conseil Européen pour la Recherches Nucleaires (CERN) and the other features high precision, including β-factories in the US and Japan and the φ-factory and τ-factory
