ICCPG4 圓滿結束/ ICCPG4 successfully held Published June 19, 2017 at 1269 × 846 in ICCPG4 successfully held. 會議開幕式（3-4/6/2017，河南大學） 更多會議報導，請見http://glos.cssn.cn/yyx/yyx_yclg/201706/t20170619_3554454.shtml
