Results show that SO_2 and NO_X emissions in 1990 are 17518kt and 8422kt respectively and the heigh emission intensity areas are concentrated in middle East China.是什么意思_Results show that SO_2 and NO_X emissions in 1990 are 17518kt and 8422kt respectively and the heigh emission intensity areas are concentrated in middle East China.在线翻译_英语_读音_用法_例句