The main result of study is as follows: (1) Citrus orchard soil greyish brown purple mud constant element background value in Jiangjin.
主要研究结果如下：(1)江津市柑橘果园土壤灰棕紫泥常量元素背景值。
The study of element background value reflects the degree of departure of the microelement in road dusts from element of its source area.
积尘元素背景值的研究反映积尘微量元素偏离其来源区元素的程度。
As lead and arsenic pollution element are skew distribution, statistics of a natural background value and a content of lead and arsenic are worked out using median method of skew distribution.
由手铅、砷污染元素呈偏态分布，故采用偏态分布中的中位数法作了铅、砷自然背景值及含量的统计。
The background value of Beryllium element in soil of China was studied.
本文介绍了我国土壤中铍的背景值结果。
The research about finite element analysis for two-dimensional thermal structures with uncertain parameters has extensive engineering-background, important theory meaning and academic value.
不确定性参数的二维热结构有限元分析研究有着广泛的工程背景和重要的理论意义与学术价值。
The results showed that this estimation method highlighted a macroscopic variability regularity of the environmental background value for element calcium of topsoil in China.
结果表明，这种估值方法突出反映了钙元素在中国的宏观变化规律。
The results showed that this estimation method highlighted a macroscopic variability regularity of the environmental background value for element calcium of topsoil in China.
结果表明，这种估值方法突出反映了钙元素在中国的宏观变化规律。
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