求翻译：本标准规定了经由城镇下水道系统排入城镇污水处理厂污水中必须控制的污染物项目及标准限值，污染物项目的监测方法与标准实施、监督的责任主体。是什么意思？

This standard specifies the sewer system through the town sewage treatment plant effluent discharged into the town to control the pollutants in the project and the standard limits, pollutant monitoring methods and standards for project implementation, monitoring the main responsibility.

The standard cities and towns through the sewage system in the sewage treatment plant in the cities and towns must control the pollutants and standard limit values project, pollutants monitoring methods and standards of project implementation, monitoring the subjects of responsibility.

This standing operating procedure has dispersed into the pollutant project and the standard limiting value by way of the cities sewage system which in the cities sewage treatment plant sewage must control, the pollutant project monitor method and the standard implementation, the surveillance respons

By way of the standards for urban sewer systems discharge into municipal wastewater treatment plant effluent pollutants project and standard limit must be controlled, pollution monitoring methods and standards of the project implementation, supervision and liability.

This standard specifies the sewer system through the town sewage treatment plant effluent discharged into the town to control the pollutants in the project and the standard limits, pollutant monitoring methods and standards for project implementation, monitoring the main responsibility.