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树木分泌物
释义
树木分泌物
Encyclopedia
农学
树木分泌物
释
tree exudate; tree secreta
树木分泌物
活立木的枝干、叶子、花朵、果实、根系等不同部位在生长过程中自然产生和受刺激产生的气体、液体或固体状物质,和以这些部位及其汁液为食的寄生生物所产生的代谢物或排泄物。通常指具有可收集和加工利用价值的物质。
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order of a congruence
order of a covering
order of a curve
order of a derivative
order of a determinant
order of a difference
order of a difference equation
order of a differential
order of a differential equation
order of a differential operator
order of a field
order of a function
order of a group
order of a group element
order of a Latin square
order of a matrix
order of a meromorphic function
order of a modulus of continuity
order of an algebraic curve
order of an algebraic equation
order of an algebraic surface
order of an algebraic system
order of an element
order of a net
order of an infinitesimal
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