Feasibility, validity and other problems of line transect survey method in shallow fresh water lake were also discussed.

 
  • 探討了截線(xiàn)抽樣法用于淺水型淡水湖泊調查的可行性和有效性以及要注意的問(wèn)題。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan