区别就是两者意思是不一样,具体的不同如下

cj中文意思是abbr. 砖砌厚缝(clip joint)审判长(chief justice)冷接点(构件接头)(Cold Junction)《剑桥杂志》(Cambridge Journal)

ccj中文意思是abbr. 郡法院判决(county court judgment)颅颈交界区(craniocervical junction)