“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	media marketing segmentation media market penetrability strategy media market pioneering strategy media market positioning media market research media monitoring media morphosis theory Media Museum at Communication University of China median median absolute deviation median age median citation age median control chart Median effective dose median effective dose median eminence median envelope median error median filter median lethal concentration median lethal concentration for fishery organisms median lethal dose median lethal dose (LD_{50}) median lethal dose, LD50 median line

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。