片语

ronmental background value环境背景值

precipitation background value降水背景点

background difference value method背景差值法

background level基值电流；背景值

environmental background value环境背景值

cs background valuecs背景值

background d value背景值

background and value of education教育背景与价值

background color value背景颜色值

英汉例句

• the compositions of s, f, hg in soil near gangue pile in laiwu coal field are higher than contrast point, but lower than background value of soil composition in shandong province.

  莱芜煤田矸石堆附近土壤中的硫、氟、汞等成份比对照点偏高，但低于山东省土壤成份背景值。

• because of the influence of sand storm, the overall level of air environmental background value of dustfall is increasing in gansu province in the last 15 years.

  受沙尘暴降尘的影响，近15年来甘肃省大气自然降尘背景值总体水平呈上升趋势。

• results the equivalent sound levels (laeq) were qualified in spite of higher background value of noise in this areas.

  结果该区域背景噪声值较高，但其等效声级达标。

• according to the falling rate, the content of mercury in the deposit will reach the background value after 32.57 years.

  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。

• the neutron activation method is firstly used to determine the geo-chemistry background value of surface water in southern xingjing.

  用中子活化法测定地表水体中的地球化学背景值是一项新的分析技术。

• these results have provided useful bases for recommending reference dose of related natural radiation exposure, parameters of chinese reference man and background value of radiation monitoring.

  这些结果为推荐我国天然辐射剂量参考值、我国参考人相应参数和辐射监测背景值提供了有用依据。

• the paper advances a new method, using sin function to deal with sequence, structuring background value approximately, building corresponding metabolism model.

  本文提出一种方法，采用正弦处理建模序列，对背景值进行近似构造，最终建立相应的新陈代谢模型。

• the authors made a research on the background value and the distribution of the hardness, the sulfate ion and the chlorine ion.

  论文对硬度、硫酸根离子、氯离子的背景值及其分布规律分别进行了研究。

• the background value of cobalt in soil of yunnan province was sampled and analyzed, the results show that the cobalt content in soil is log-normal distribution, the median is 16.

  对云南省土壤钴元素背景值进行了采样分析，结果显示：云南土壤钴元素含量呈对数正态分布，中位值16。

• 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 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 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.

  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。

• in the study of groundwater movement using tritium in atmospheric precipitation as tracer, we will inevitably encounter the input background value problem of tritium.

  应用大气降水中的氚做示蹤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。

• the middle cambrian tianpeng formation has high background value of metallogenetic element, which is the advantageous ore source horizon.

  田蓬组地层成矿元素高背景值，为有利之矿源层。

• thispaper proposes the concept of background value and cut off value, a merthodfor indicating oil-gas zone by formation cementation exponent is detailed.

  本文提出的地层胶结指数法，引入了背景值和下限值概念，用它指示油气层，具有更高的分辨率和直观性。

• heavy metal, such as mercury, copper, magnesium, manganese and zinc among surface layer soil, their content were greater than their background value in loess soil.

  重金属汞、铜、镁、锰和锌在耕层土壤中其含量大于黄绵土土壤元素背景值；

• 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 excess of sodium are probably caused by the high background value of recharging source and the dissolution of vaporous deposition of sodium-sulphate in the aquifer.

  其钠离子的超出部分可能是因为地下水补给源的背景值较高以及硫酸钠蒸发沉积物在地下水径流过程中的溶解。

• this area is the geochemical one with high copper background value and has the favourable condition for copper mineralization.

  本区为铜的地球化学高背景场区，具有较好的铜矿成矿条件。

• 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。

• in processing geochemical data, the fracture theory and background value separating method are introduced in the system.

  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。

• the background value of water environment is the major subject of geochemical research of water environment.

  水环境背景值是水环境地球化学研究的重要内容。