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BEIJING, Aug. 6 (Xinhua) -- China on Tuesday voiced strong opposition to the U.S. decision to label it "a currency manipulator," stressing that China has never resorted to competitive devaluation and will not use the currency as a tool to deal with trade disputes.

"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.

Kin Phea, director-general of the International Relations Institute Cambodia of the Royal Academy of Cambodia, said on Tuesday that the South China Sea dispute has been seen bigger than the dispute itself in nature due to interference from the outsiders and the distortion of Western media.

Wang said the three sides should safeguard free trade, build an open world economy, play a due role in concluding the negotiations of the Regional Comprehensive Economic Partnership (RCEP) within this year, and promote new progress in the China-Japan-ROK free trade area negotiations.