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母树林
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母树林
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母树林
释
seed production stand
母树林
在优良天然林或确知种源的优良人工林基础上,经过留优去劣的疏伐,为生产遗传品质较好的林木种子而营建的采种林分。
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characteristic numbers of distribution
characteristic of a differential equation
characteristic of a field
characteristic of a hypersurface
characteristic of a logarithm
characteristic of an integral equation
characteristic of a ring
characteristic operator
characteristic operator function
characteristic parameter
characteristic parameter of antenna
characteristic piece
characteristic plane
characteristic p-method
characteristic point
characteristic polynomial
characteristic polynomial of a graph
characteristic polynomial of a matrix
characteristic quadratic form
characteristic radius
characteristic ray
characteristic ray cone
characteristic ring
characteristic root
characteristics
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