Natural environmental elements: hills, waters, clouds stones, orderless, sensibilities, nature.
基于1个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
This article gives an account of the relationships between the natural background values of elements in soil and environmental conditions.
本文详细叙述了土壤中元素自然背景值与环境的密切关系。
youdao
应用推荐
模块上移
模块下移
不移动