“tree seed harvesting”的概念、定义、翻译、参考文献-科学参考

单词	tree seed harvesting
释义	tree seed harvesting Encyclopedia 农学〔林木种子〕释 tree seed harvesting林木种子采集林木种子是造林更新的物质基础，育苗造林所需的种实要具有优良的遗传品质和播种品质。
随便看	difference Monte Carlo method difference of a function difference of events difference of first order difference of higher order difference of higher order; higher difference difference of learning–performance difference of magnetic potential difference of partial sums difference of sets difference of successes difference of two convex sets difference of two sets difference of two squares difference operator difference pattern difference poset difference product difference proportion difference quotient difference ring difference scheme difference semigroup difference sequence difference series

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