variable discharge runoff regulation

例句：

1. 1. The city has implemented a variable dischargerunoff regulation to reduce pollution in theriver.
   该市实施了可变排放径流调控，以减少河流的污染。
2. 2.The new law requires businesses to comply withvariable discharge runoff regulation standards.
   新法律要求企业遵守可变排放径流调控标准。
3. 3. The government is working on developing amore effective variable discharge runoff regulation system.
   政府正在努力开发一个更有效的可变排放径流调控系统。