“promotion of improved forest varieties”的概念、定义、翻译、参考文献-科学参考

单词	promotion of improved forest varieties
释义	promotion of improved forest varieties Encyclopedia 农学林木新品种释 promotion of improved forest varieties林木良种推广在一定区域内，把通过审定且产量、适应性、抗性等方面明显优于当前主栽材料和种植材料的林木种子进行推广的活动。
随便看	Jackson identity Jackson inequality Jackson kernel Jackson network Jackson Pollock Jackson singular integral Jackson-Slater identity Jackson theorem Jackson type inequality Jackson type theorems Jacksonville Jack the Ripper jack-up platform Jack William Szostak Jacob Jacob (Aall Bonnevie) Bjerknes Jacob August Riis Jacob Bernoulli Jacob Burckhardt Jacob Cheung Jacob Clemens non Papa Jacob Grimm，Wilhelm Grimm Jacob Handl Jacobi Jacobi algorithm

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