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								. XIA J W, ZHAN W L, WEI B W et al. The heavy ion cooler-storage-ring project (HIRFL-CSR) at Lanzhou. NIMA, 2002, 488: 11-25 
. XIA J W, ZHAN W L, WEI B W et al. The heavy ion cooler-storage-ring project (HIRFL-CSR) at Lanzhou. NIMA, 2002, 488: 11-25