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"The time jitter of the timing system for the particle beams must be controlled at the nanosecond level," said Xu Shouyan, the group leader of the accelerator physics.
The visit comes as the two countries are embracing the 70th anniversary of the establishment of diplomatic ties and ushering in a new era in their relations.
A series of measures were taken following Xi's instructions.
The CSNS is the fourth pulse spallation neutron source in the world after the UK, the United States and Japan, with the debugging efficiency of its researchers surprising their foreign peers.
The performance was divided into four parts, featuring symphony, chorus, poetry recital and dance.
