operationism操作主义operationn.操作；运转；经营；行动；手术；运算；生效；（复）运筹学Operation-level作业层Operation pathway手术路径Operation consent手术签字operation control操棕制,操作控制,操作控制器Operation network业务网operation address操作地址Operation on nose鼻手术operation routine作业程序operation journal操作记录operation patient手术病人

1. It shows operation steps, making demos and videos for training and tutoring.
   该软件可以显示操作步骤，制作用于培训和辅导的演示和视频。
2. Therefore, COD is a conditional indicator, and strict operation procedure must be followed.
   因此，化学需氧量亦是一个条件性的指标，必须严格按操作步骤进行。