discharge standard

• 排放标准

discharge standard的用法和样例：

例句

1. National standards would have stricter limits for discharge of pollutants in key river valleys.
   提高重点流域水污染物的国家排放标准。
2. There is also a special carbon monoxide standard applicable to engine operation in low temperatures.
   另有一个专门针对一氧化碳的排放标准，适用于低温下的机器开动。