耕地后备资源 cultivated land reserves
耕地后备资源调查 cultivated land reserves survey
耕地后备资源库 land reserveing database
·2,447,543篇论文数据，部分数据来源于NoteExpress
开发后备耕地资源有潜力。
There is also potential for exploiting untouched arable land resources.
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红壤丘岗缓坡地是我国重要的后备耕地资源。
Hilly_sloppy is an important potential resource of farming land in subtropical red soil regions in China.
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