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沙波纹
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沙波纹
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干热河谷
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sand ripple
沙波纹
在河流、三角洲、潮滩、沙漠等区域,在风力、水流反复作用下,松散沙质表层形成波纹状微地貌。
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soil aggregates
soil air
soil air sampler
soil algae
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soil alkalinization
soil amelioration
soil amendment
soil ammonium fixation
soil analysis
soil and atmospherically resistant vegetation index,SARVI
Soil and Fertilizer Sciences in China
soil and health
soil and rock erosion
soil and stone material
soil and water conservation
soil and water conservation ecological rehabilitation
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soil and water conservation farming measures
soil and water conservation forest-grass measures
Soil and water conservation in china
soil and water conservation informatization
soil and water conservation measures
soil and water conservation measures monitoring
soil and water conservation monitoring
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