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Winner of the national honorary title of “people's scientist”
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NA Cheng Kaijia, born August 1918, died November 2018: Deceased physicist NA Cheng is one of the pioneers of China's nuclear weapons development and one of the co-founders of the nation's nuclear test system. He had participated in and led a number of nuclear tests, including the first atomic and hydrogen bomb test and the flight test of atomic bomb on ballistic missile, making remarkable contributions to establishing the nuclear test system with Chinese characteristics.