code of operation meaning in English

业务守则

Code of operation for hydraulic turbines
水轮机运行规程
Code of operation management and inspection for transmitters transducers of non - electric elements in hydraulic power plant
水电厂非电量变送器传感器运行管理与检验规程
Code of operation maintenance overhaul and test for automatic control components and their related systems for hydrogenerating sets
水电厂机组自动化元件及其系统运行维护与检修试验规程
The information security administration code of internet service business site - part 8 : code of operation of system operation log
互联网上网服务营业场所信息安全管理代码.第8部分:系统操作日志操作行为代码