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研究结果表明:我国的土壤侵蚀以水力侵蚀为主,其次为风力侵蚀和冻融侵蚀。
It is shown that the main types of soil erosion are water erosion, wind erosion and frozen erosion in China.
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冀北地区土壤侵蚀以风力侵蚀和水力侵蚀为主。
The main erosion patterns in the north of Hebei province are wind-erosion and hydra-erosion.
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