“土壤环境背景值”的概念、定义、翻译、参考文献-科学参考

单词	土壤环境背景值
释义	土壤环境背景值 Encyclopedia 农学土壤环境背景值释 background value of soil environment土壤环境背景值自然条件下的一定时间和空间范围内，未受到或少受到人类活动影响和外源物质干扰的土壤固有的化学组成、数量和结构的特征参数。不是一个固定值，而是范围值。
随便看	population protected mode of medicinal resources Population pyramid Population quantity population random distribution population recruitment Population Registers population regulation population resource population-shift algorithm population size population sociology population spatial distribution population stability population standard deviation population statistics population structure population subdivision population survey population synthesis Population systems engineering population systems engineering population theories population theories of Keynes school population thought in ancient China population transition

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。