甲烷氧化菌的数量明显高于背景值。
The quantity of MOB was much higher than the background value.
简要介绍了中国土壤背景值图集。
The atlas of China soil background values was briefly introduced in this paper.
本文介绍了我国土壤中铍的背景值结果。
The background value of Beryllium element in soil of China was studied.
建议在土壤背景值调查中试用分析质量控制。
It is suggested that analytical quality control technique should be used in soil background survey.
土壤中微量元素的含量与世界土壤背景值相似。
Trace elements in soil of Tumotezuoqi were similar to the background levels of elemental composition of soil in the world.
水环境背景值是水环境地球化学研究的重要内容。
The background value of water environment is the major subject of geochemical research of water environment.
通过对土壤背景值的测定，找出最合适的营养物质配比。
We identified the most appropriate proportion of nutrients by analyzing the soil background values.
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。
This article gives an account of the relationships between the natural background values of elements in soil and environmental conditions.
同时在化探数据的处理上引入了分形理论及背景值分离的方法。
In processing geochemical data, the fracture theory and background value separating method are introduced in the system.
用主成份分析研究了影响北京地区土壤元素背景值的主要因素。
The main component analysis has been used to study the principal factors which affect soil background contents of a number of metals in Beijing area.
目的：测定南澳县水源水中氟化物的背景值及其它相关水质指标。
Objective: To measure the background fluoride and related water quality indices in water source of Nan 'ao County.
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。
The study of element background value reflects the degree of departure of the microelement in road dusts from element of its source area.
按此下降速率，沉积物的汞含量经32.57年可达到背景值水平。
According to the falling rate, the content of mercury in the deposit will reach the background value after 32.57 years.
结果表明沉积物中铅含量近年来有所下降，镉和锌含量明显高于背景值。
The content of lead has decreased in recent years while cadmium and zinc are relatively high.
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 main result of study is as follows: (1) Citrus orchard soil greyish brown purple mud constant element background value in Jiangjin.
数据应进行处理，剔除污染土壤，确定元素的分布类型，给出元素背景值。
The data need to be treated, polluted soils rejected, the types of elemental distribution determined and the background values of elements given.
结合黄河下游疏浚工程，通过现场取样和化验，确定了疏浚底泥的环境背景值。
With the dredging projects in the Lower Yellow River, the environmental background values of the dredging silt have been determined by means of on site sampling and measurement.
以县区为单位，以土属为单元，对农业土壤中8种重金属元素背景值进行研究。
Background data of 8 heavy metals in agricultural soils classified according to soil basic categories and limited within a suburban district were studied.
灰色GM（1，1）模型中的背景值构造法是影响模型适应性和精度的关键因素。
The structure method of background value in grey system GM(1,1) model is considered to have an important influence on the adaptability and precision of GM(1,1) model.
讨论了土壤背景值在制定土壤环境质量标准、研究人体健康和农业方面的应用实例。
The examples for the application of the background values to the formulation of soil environmental quality standard and the study of human health and agriculture were discussed.
本文以“变化电性剖面模型”为基础，计算出正常背景值，以消除表层变化的影响。
In this paper, basing on the profile model of variable electric property, the normal background value is calculated to eliminate the influence of surface variation.
在模型中尝试性地将面源污染产生的浓度贡献转化到背景值中计算，简化了解析模型。
In the model the contribution from area pollution sources was calculated by transforming it to the background concentration, so the model was greatly simplified.
本文报告了中国土壤61种元素的背景值以及某些元素在全国的分布特征和变化趋势。
This paper reports the background contents of 61 elements in Chinese soil and the distribution character and change trend of the distribution of some elements in the whole country.
一般在高烈度异常点、地裂缝地段、抛石块地段，汞的测值均高于背景值，达异常指标。
Generally speaking, mercury observations in anomalous points with high intensity, segments of fissure and stone jumping are all above background value, reaching anomalous index.
本文在深入讨论了灰色系统背景值以及灰色序列生成等问题，提出了无偏直接灰色模型。
This paper discusses the grey accumulation of original data and the grey derivative's white value, and proposes an unbiased direct grey model.
应用大气降水中的氚做示踪核素来研究地下水的运动状态，必然遇到氚的输入背景值问题。
In the study of groundwater movement using tritium in atmospheric precipitation as tracer, we will inevitably encounter the input background value problem of tritium.
以往土壤环境质量评价中，一般是以区域土壤背景值或评价区土壤对照点含量作为评价标准。
In conventional soil environment quality evaluation, the regional soil background values or the contents in the soil control points of evaluated region were used as evaluation criteria.
大地微电流在这2次地震前具有明显的异常变化，其异常幅度达正常背景值的10~20倍。
The anomalous variations of micro-current before this two earthquakes are obvious. The anomalous amplitude is 10~20 times higher than that of ordinary background.
大地微电流在这2次地震前具有明显的异常变化，其异常幅度达正常背景值的10~20倍。
The anomalous variations of micro-current before this two earthquakes are obvious. The anomalous amplitude is 10~20 times higher than that of ordinary background.
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