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contour hedgerow
释义
contour hedgerow
Encyclopedia
农学
等高植物篱
释
contour hedgerow
等高植物篱
在山丘、坡面上沿等高线按照一定的间隔,以线状或条带状密植灌木、乔木及灌草结合的植物篱带。在篱带间种植作物可以减缓径流、减少水土流失。是坡耕地上低投入、高收益的保护性耕作和可持续利用设施。
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rank of an operator
rank of a partition
rank of a prime ideal
rank of a projective module
rank of a quadratic form
rank of a relation
rank of a ring
rank of a root system
rank of a set
rank of a set of vectors
rank of a singular point
rank of a space
rank of a subset
rank of a system of equations
rank of a system of vectors
rank of a tensor
rank of a transformation
rank of a valuation
rank of a vector bundle
rank of a vector space
rank of a web
rank of commensurability
rank of death cause
rank of indefiniteness
rank of the elliptic curve
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