“seedling gradation”的概念、定义、翻译、参考文献-科学参考

单词	seedling gradation
释义	seedling gradation 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	extensive mean extensive mediation extensive parameter extensive properties extensive quality extensive quantity Extensive Records compiled in the Taiping Years Extensive Records of the Forest of Affairs extensive sampling extensive shower extensive variable extensivity extensometer extensometric extensometry extensor extent extent of reaction extent of stria extenuation exterior exterior algebra exterior alternate angles exterior angle exterior-angle bisector

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。