operativeadj.有效的；至关重要的；运作的n.技工；侦探Operative forces作用力operative limits[计] 操作极限operative length工作长度operative manner手术方式operative memory操作记忆operative defect术后缺损operative actual[医] 手术死亡率operative region手术区域Operative timing手术时机operative clause实施条款