超低排放改造
ultra-low emission transformation

生态环境部等部门1月19日印发意见，要求到2025年底，大气污染防治重点区域力争50%水泥熟料产能完成超低排放改造。
In the country's key regions for air pollution control, half of cement clinker production capacity is expected to complete ultra-low emission transformation by the end of 2025, according to the plans issued by state organs including the Ministry of Ecology and Environment on January 19.