扬析是指从由各种颗粒直径的混合物形成的床层中选择地夹带出细粉颗粒的过程。
Elutriation refers to the selective removal of fines by entrainment from a bed consisting of a mixture of particles sizes.
细沟间侵蚀是指坡面上细沟未形成之前或细沟形成之后细沟间的土壤侵蚀过程。
Rill erosion refers to the soil erosion process taking place between rills before or after formation of rills on the slope surface.
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