| 释义 |
discharge standard短语¹⁸⁰⁰⁹⁸⁺¹
基本例句
排放标准
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。
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。 |