?腰椎后部融合术

... 外部 1.(某一范围以外) outside; external 外部世界 the external world; the outside world; the outer world; 事物的外部联系 external relations of things; 国家政策的制定不该受外部影响。 national policy should not be determined by outside influence.2.(表面) exterior; outside; surface 外部装修 exterior decoration; (房屋) 外部的修理 outside repairs 腰椎后部融合术 fusion of posterior lumbar spine 财务；融资 finance ...