The oasis agriculture appears the special characters due to the eco - environment characters of arid area of northwest region.
西北干旱区内陆绿洲的主要生态环境特点，导致其特殊的农业特点；
The oasis agriculture appears the special characters due to the eco - environment characters of arid area of northwest region.
西北干旱区内陆绿洲的主要生态环境特点，导致其特殊的农业特点；
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