This paper discusses the optimal model of water and soil conservation countermeasures such as contour ridge culture,level ditch plant girldle and ridge culture area,and makes test study at test base.是什么意思_This paper discusses the optimal model of water and soil conservation countermeasures such as contour ridge culture,level ditch plant girldle and ridge culture area,and makes test study at test base.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句