soil background value 土壤背景值
soil background values 土壤背景值
soil background content map 土壤背景值图
national soil background value 全国土壤背景值
soil environmental background value 土壤环境背景值
background value of soil environment 土壤环境背景值
background value of soil element [土壤] 土壤元素背景值
The atlas of China soil background values was briefly introduced in this paper.
简要介绍了中国土壤背景值图集。
We identified the most appropriate proportion of nutrients by analyzing the soil background values.
通过对土壤背景值的测定，找出最合适的营养物质配比。
It is suggested that analytical quality control technique should be used in soil background survey.
建议在土壤背景值调查中试用分析质量控制。
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