This paper discusses the basic theory, applied region and technical main point of the hillside cultivated alleg directed regional field.
阐述了坡耕地垄向区田的基本原理、应用范围及技术要点。
This paper discusses the basic theory, applied region and technical main point of the hillside cultivated alleg directed regional field.
阐述了坡耕地垄向区田的基本原理、应用范围及技术要点。
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