查询词典 variation coefficient

Analyzing about the statistical characteristic data of soil nitrate content , the result was that the range of coefficient of variation of soil nitrate content is between 46.71% and 99.78%, in which belong to the medium-degree vitiated intensity.

对土壤硝态氮的统计特征数据分析知，土壤硝态氮的变异系数在46.71-99.78%之间，属中等变异。

The fourth part establishes a comprehensive evaluation model match with macro-microeconomic environment of objective dynamic weight .The financial indexes of SSE 50 listed companies are supplied from financial statement of 2004. And the financial indexes are choused with the total index methods of the coefficient variation and Wang-model.

第四部分以上证50指数股上市公司2004年度报表所提供的诸多财务指标为依托，结合变异系数法和汪氏模型筛选出所需财务指标，并配以能与宏微观经济环境相匹配的客观动态权数体系建立上市公司综合评价模型。

Basisd on the controlled stocking rates, comparable repeated experiment was conducted to understand the stability of grazing ecosystem in vegetation, soil and livestock, considered the year as the principal component to evaluate the effect and mechanism of annual precipitation on grazing ecosystem characteristics, using the coefficient of variation in terms of ANPP and decrease and increase of functional groups to reveal the ecosystem stability and ecological compensatory effect in grazing ecosystem. The result not only richens the study contents of ecosystem stability, but also provides a guide for adaptive rangeland management plans, which are promoted the ecological and economic sustainable development.

本研究首次采用重复性对比研究，对草原放牧生态系统的稳定性在草-土-畜3个方面的体现进行综合对比，分析年度和载畜率的协同效应，揭示降水量对草地生态系统稳定性维持的影响机制，运用草地植被地上净生产力的变异性和功能群的消长阐明载畜率对放牧系统稳定性和系统内部生态补偿效应的影响，不仅丰富了草原放牧系统的研究，而且对内蒙古荒漠草原草地适应性管理措施的制定和实施具有指导意义。

A competitive ELISA kit for detect ENR was developed with ENR mAb and its traits were tested.Two hybridoma lines were filtered and the best one was 4G1-B3,which secreted ENR mAb with indirect ELISA titers of 1∶1.024×10~6 in ascites.Isotype of the two mAb was IgG_1.ENR mAb had a high affinity constant with 9×10~(10)L/mol.The ENR-Kit had the linear detection range of 0.05～101.6μg/L,the sensitivity of 0.05 μg/L and a good sensitivity with an IC_(50) of 1.1μg/L to ENR,cross-reactivity to other compounds less than 0.01%.The average recoveres of ENR spiked in chicken,liver,fish and milk were 81.5%,87.6%,84.3% and 95% respectively.The coefficient variation was below 10%.

结果表明：筛选出的2株杂交瘤细胞，单抗亚类均为IgG1型，其中4G1-B3株的ENR mAb间接ELISA效价为1：1.024×106，亲和常数为9×1010L/mol；竞争ELISA试剂盒的线性检测范围为0.05~101.6μg/L、灵敏度0.05μg/L、半数抑制浓度(IC50)1.1μg/L，与其他化合物的交叉反应率均小于0.01%，鸡肉样、鸡肝样、鱼肉样和牛奶样的平均添加回收率分别为81.5%8、7.6%、84.3%和95%，不同基质添加恩诺沙星标准品做竞争ELISA对ENR-Kit检测结果影响小，试剂盒保存期6个月以上。

In a O〓-Ar mixture, the dynamic process of vibration-dissociation coupling behind a primary shock front is studied. The variation of many of the physical quantities with time are calculated out, such as the vibrational energy level distribution, the vibrational energy, the vibrational relaxation time, the dissociation incubation time, the dissociation product concentration, the dissociation rate and the dissociation rate coefficient.

对O〓-Ar体系考查了正激波后振动激发与解离耦合的动态发展过程，计算给出了振动布居分布、振动能、振动弛豫时间、解离孕育时间、解离产物浓度、解离速率、解离速率系数各物理量随时间的演化。

The coefficient of drop pill weight variation changes with different condition with the four factors of above-mentioned.

以上4个因素均可影响血塞通滴丸的重量差异，在生产中应对其进行控制。

The relationship between the processing parameters and the dilution and the effective utilization of powder coefficient were explained theoretically In the meantime, the theoretical method to analyze the variation of the microstructure and the properties of the cladded layer were formulated.

建立了多道搭接技术条件下熔覆层稀释率、粉末有效利用系数和激光热有效利用率的方程。在搭接过程中，熔覆材料的损失机制主要是烧损。

Online tuning and relatively light calculation burden due to directly coefficient setting by formula extend this scheme to be used for fast-running process and mechanical equipment, numerical simulation over a wide range of system parameter variation shows that the recommended scheme is superior to both traditional PDF designed by Phelans approach and relay feedback auto-tuning PID in terms of performance behavior.

本文通过基于继电反馈的自整定PDF控制和基于Phelan法的PDF控制及基于继电反馈的自整定PID控制的比较研究，表明所提出的控制方法具有良好的控制效果。

Online tuning and relatively light calculation burden due to directly coefficient setting by formula extend this scheme to be used for fast-running process and mechanical equipment, numerical simulation over a wide range of system parameter variation shows that the recommended scheme is superior to both traditional PDF designed by Phelan's approach and relay feedback auto-tuning PID in terms of performance behavior .

大量的数值仿真试验表明，该自整定PDF控制方法具有良好的控制效果和在线调节性能，具有设计公式简单、相对计算量小的特点，能够应用于快速变化的过程和机械设备中。本文通过基于继电反馈的自整定PDF控制和基于Phelan法的PDF控制及基于继电反馈的自整定PID控制的比较研究，表明所提出的控制方法具有良好的控制效果。

The variation of CHGR with depth is available from the calibration of the porosity, gas saturation of electric log interpretation of the reservoir and hydrocarbon gases expansion coefficient.

应用上述方法在川西白马庙地区5口井成功地计算了岩石含烃浓度，为该区的油气生成、运聚、成藏研究和勘探决策等提供了重要的地质依据。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。