The paper suggested establishing groundwater and soil suveying system, therefore, to research the effect on soil and groundwater of exploiting waster water.

 
  • 建議建立地下水和土壤監測系統,研究污水灌溉對土壤和地下水的影響。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan