JCN=Job Control Number作业控制数jn.字母jJiangsu Electric Power Grid江苏电网Jiangbian hydropower station江边水电站Jiaweibuyanghuanwu decoction加味补阳还五汤Jiaozi Stuffed with Mackerel鲅鱼水饺Jiefangbei Business District解放碑商圈Jiangxi Agricultural Academy江西农业院Jidong magnetite concentrate冀东磁铁矿Jiulong River Basin solution九龙江流域Jiangsu section of the Canal苏北运河Jiushan National Forest Park韭山国家森林公园