extra tea顶上嫩茶extraadj.额外的n.额外之物；临时演员adv.特别地extra-deep diaphragm wall超深地下连续墙extrapulmonary tuberculosis肺外器官结核病extra-arachnoid injection蛛网膜外注射extrapyramidal motor system锥体束外运动系统extra-articular osteotomy关节外截骨extra-deep foundation pit超深基坑extra fine fistula director极细形瘘管探条extragalactic radio sources河外射电源extracorporeal pump monitor体外循环泵监控器extra-high voltage system超高压系统