首席代表
senior representative;chief representative(or delegate)
朝中方面～ senior representative of the Korean-Chinese side（朝鮮停戰(zhàn)談判）/中葡聯(lián)合聯(lián)絡(luò)小組中方～ senior representative of the Chinese side to the Sino-Portuguese Joint Liaison Group/大使級(jí)的～senior representative of ambassadorial rank