operative gas可操作性气体operativeadj.有效的；至关重要的；运作的n.技工；侦探Operative procedure on vertebral column脊柱手术操作法Operative procedure on endocrine system内分泌系统手术操作Operative therapy of traumatic cataract外伤性白内障手术治疗体会Operative procedure on peripheral nerve周围神经手术操作Operative procedure on respiratory tract呼吸道手术操作Operative procedure on coronary arteries冠状动脉手术操作Operative procedure on parathyroid gland甲状旁腺手术操作Operative procedure on cerebral aneurysm脑动脉瘤手术操作Operative procedure on spinal structures脊椎结构手术操作Operative treatment Orthotopic recurrcnce腰椎融合

1. Finally,echocardiogram features and some operative skills were mentioned.
   文中提出了该病的超声心动图特征性表现和一些操作技巧。
2. Thirdly, considering both difficulties of resection and his operation skill, the surgeons did not dare to enlarge resection scope suitably, so resections were not actually radical.
   主观上手术医生因操作技巧问题不敢轻易扩大切除范围而导致手术不彻底的可能。