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slashing and burning agriculture
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slashing and burning agriculture
Encyclopedia
管理学
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slashing and burning agriculture
刀耕火种农业
原始农业的生产方式。“刀耕”意为使用刀斧砍伐树木,“火种”是指把砍伐晒干的树木焚烧成灰、开辟出耕地以播种农作物。
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singular plane of support
singular point
singular point at infinity
singular point of a curve
singular point of a difference equation
singular point of a differential equation
singular point of a quadric
singular point of a surface
singular point of higher order
singular point of order k
singular probability distribution
singular process
singular projective transformation
singular proposition
singular q-cochain
singular quadratic form
singular quadric
singular quadric hypersurface
singular saddle point
singular semigroup
singular sequence
singular series
singular set
singular set function
singular simplex
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