secondary grid emission

例句：

1. 1. The city's secondary grid emissionsare a major concern for air quality.
   该市的二次电网排放是空气质量的主要关注点。
2. 2. The government is working to reduce thesecondary grid emissions in the area.
   政府正在努力减少该地区的二次电网排放。
3. 3. The newpower plant will have a significant impact onthe secondary grid emissions in the region.
   新电厂将对该地区的二次电网排放产生重大影响。