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The content of effective phosphor is of lack in all land use types.
有效磷的含量在各土地利用类型上都处在缺量范围。
youdao
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The main parts of change in land use types are paddy field and dry land.
土地覆被发生变化的部分以水田和旱地为主。
youdao
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The main parts of change in land use types are paddy field and dry land.
土地覆被发生变化的部分以水田和旱地为主。
youdao