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tree for seed collection
释义
tree for seed collection
Encyclopedia
农学
母树林
释
tree for seed collection
采种母树
由天然林或人工林经过初步去劣留优改建,在以采种为目标经营的采种林分中保留下来的专用于种子生产的树木。
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hyperbolic catenary
hyperbolic closed orbit
hyperbolic collineation
hyperbolic cologarithm
hyperbolic comet
hyperbolic conchoid
hyperbolic cone
hyperbolic constant
hyperbolic convexity
hyperbolic coordinates
hyperbolic coordinate system
hyperbolic corner
hyperbolic cosecant
hyperbolic cosine
hyperbolic cosine integral
hyperbolic cotangent
hyperbolic cube
hyperbolic curve
hyperbolic cylinder
hyperbolic cylinder coordinate
hyperbolic cylindrical surface
hyperbolic decline
hyperbolic defect of a triangle
hyperbolic differential equation
hyperbolic differential operator
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