water quality standard

例句：

1. 1.The government has set strict water quality standards for the city's rivers and lakes.
   政府已经为城市的河流和湖泊设定了严格的水质标准。
2. 2.The new law requires all factories to meet certain water quality standards before they can operate.
   新法律要求所有工厂在运营前必须达到一定的水质标准。
3. 3. The company is committed to meeting these water quality standards in order to protect the environment.
   该公司致力于满足这些水质标准，以保护环境。