请输入您要查询的字词:
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
linearly equivalent divisor
linearly equivalent divisors
linearly equivalent to zero
linearly independent
linearly independent columns
linearly independent elements
linearly independent family
linearly independent fields
linearly independent forms
linearly independent functions
linearly independent points
linearly independent polynomials
linearly independent rows
linearly independent sections
linearly independent sequence
linearly independent set
linearly independent solutions
linearly independent system
linearly independent vectors
linearly normal curve
linearly ordered
linearly ordered class
linearly ordered group
linearly ordered groupoid
linearly ordered monoid
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。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/7/3 18:28:45