“苗木分级”的概念、定义、翻译、参考文献-科学参考

单词	苗木分级
释义	苗木分级 Encyclopedia 农学〔苗木培育〕释 seedling gradation苗木分级对需要出圃的苗木按苗木质量标准进行等级划分。目的是使出圃苗达到国家规定标准，保证用壮苗造林，减少造林后的苗木分化现象，提高造林成活率和林木生长量。
随便看	role intensification of patient role method Role of Five role of the law of value in the socialism role-ordered matrix role perceptions role performance role play role-play game role playing game Role playing Method role positioning role reduction of patient role reversal role scarcity of patient role set role strain Role taking role taking role theory Rolf Boldrewood Rolf Hochhuth Rolf Martin Zinkernagel Rolf Nevanlinna roll

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。