Our major problem is with respirable suspended particulates, which is attributable mainly to diesel vehicle emissions.

 
  • 我們主要的問(wèn)題在于可吸入懸浮粒子方面,這個(gè)問(wèn)題主要是由柴油車(chē)輛排放的廢氣導致。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan