Coefficient of variation of the precision experiments met requirements for analysis of trace amounts of multiple pesticides.
精密度试验的变异系数满足农药多残留痕量分析的要求。
Coefficient of variation of fresh velvet weight character in each population, especially in Qingyuan, was relatively high.
茸质量性状的变异系数均较高,尤其以清原品系的最高。
With the increase of test loads, the updated mean bond stress increases, but the updated coefficient of variation decreases.
随着最大试验荷载的增加,更新的粘结强度均值逐渐增大,但更新的变异系数逐渐减小。
The precision of an analytical procedure is usually expressed as the standard deviation or relative standard deviation (coefficient of variation) of a series of measurements.
分析规程的精密度通常以一系列测量数值的标准差或相对标准差(变异系数)来表示。
The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
将传质方程引入到垂直管降膜蒸发传热模型中,求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
Along with sampling scale increasing, the coefficient of variation increased gradually.
随采样幅度尺度的增大,变异系数呈逐渐增大的趋势。
In statistics classification, analysis of variance were applied to analyze the coefficient of variation of area of pores.
在统计分类法中,采用方差分析法分析管孔的面积变异系数。
On the basis of statistical theory, the distribution probability of full graded concrete strength and the relation between the sample size and coefficient of variation are introduced.
运用统计学理论给出了全级配混凝土试件强度的概型分布,导出了试验样本容量与变异系数之间的关系式。
The genetic variation coefficient of yield was highest (17.59%).
产量的遗传变异系数最大,为17.59%;
Thus, when the permeability of 50% probability and the coefficient of variation for lognormal distribution are known, one can establish a definite numerical model of permeability plane distribution.
这样,知道模型的渗透率对数正态分布概率50%处渗透率和变异系数,就可以建立起确切的渗透率平面模型。
This paper first measures interregional disparity in financial capacity by variation coefficient weighted by population.
首先采用以人口为权数的加权变异系数对地区间财力差异进行了度量。
The model USES the variation coefficient as parameter, which reflects eigenvalue difference to represent the weight of evaluation indexes, decreases the subjectivity of weight decision.
该模型采用反映评价指标特征值之间的差异性的参数变异系数作为评价指标的权重,减少了权重确定的主观性。
The paper studied stable seepage flow rule of overpressure reservoir and created the method for using systematic well testing data to compute permeability variation coefficient.
本文研究了异常高压油藏稳定渗流规律,建立了利用系统试井资料求取渗透率变化系数的方法。
The variation coefficient of total nitrogen(17%) was the smallest and more stable.
总氮的变异系数(17%)最小,比较稳定;
The sensitivity coefficient of air temperature above the glacier to variation of global radiation is related well with albedo and absorbed radiation.
冰川表面气温对总辐射通量变化的敏感性系数与其反射率及吸收辐射通量关系密切。
Based on the standard deviation and variation coefficient, soil water change in the profile could be divided into four layers by cluster analysis.
基于标准差和变异系数两个指标,采用聚类分析,可将土壤剖面水分垂直变化划分为四个层次:速变层、活跃层、次活跃层和相对稳定层。
Sensitivity coefficient obtained from calculation can represent how much the internal temperature variation and contraction affects the early crack of concrete structure.
计算得到的敏感系数能够表示结构内部温度变化和收缩这两个因素对于混凝土结构早期开裂的影响程度。
Variation of the coefficient with wind speeds was discussed on the basis of the formulation, and significance of the formulation in oceanic remote sensing was also explained.
还就此关系式对海面阻力系数的变化以及此关系式在海洋遥感中的意义作了讨论。
The variation of fouling resistance and frictional resistance coefficient of heat exchanger using connate Yangtze River water as cooling water is tested experimentally.
通过实验方法测试了以原生长江水为冷却水的换热器污垢热阻和摩阻系数的变化。
The wavelet coefficient curves of temperature and precipitation on different time scales reveal that the long periodical variation trend is quite different from the short.
气温和降水在不同时间尺度上的小波系数变化曲线图揭示了气候的长期和短期变化趋势有很大不同。
The rotatory method was used to determine the content of amikacin injection in the light of its right rotatory. The average recovery was 100.17%, and the coefficient of variation was 0.54%.
根据丁胺卡那霉素为有旋光性物质的原理,采用旋光法测定了丁胺卡那霉素注射液含量,结果平均回收率为100.17%,变异系数为0.54%。
Methods the ambulatory blood pressure of 7 patients with artery stenosis was tested before and after endovascular treatment, and the coefficient of variation (CV) was calculated.
方法使用动态血压监测仪测量7例血管内支架置入术患者支架置入前后的动态血压值,计算变异系数。
A method for forecasting daily gas load based on air temperature variation, namely temperature difference coefficient method is put forward, and the satisfactory forecasting result is acquired.
提出了基于气温变化的燃气日负荷预测方法——温差系数法,取得了较好的预测效果。
Furthermore, the variation laws of the pore water pressures and the permeability coefficient during the consolidation of the refuses are analysed.
并对垃圾土固结过程中孔隙水及渗透系数的变化进行了分析。
The law of spring coefficient variation in different parameters of the gasbag is explored, which lays a foundation for the application of gasbags to engineering support.
探讨了弹簧系数在不同气囊参数下的变化规律,为其在工程保障中的应用打下基础。
In growing season, the coefficient of variation (CV) in spatial change were 36%, 47% and 35%, respectively.
在这三个生长季节中,土壤呼吸速率的空间变异性系数分别为36%、47%和35%。
Moreover, the variation law of mold surface hardness and interface heat transfer coefficient were studied.
另外,研究了消失模铸造法铸型表面硬度、界面换热系数的变化规律。
With the increase of the ratio of speedup passenger trains, the reduction coefficient increases first and then decreases, but the variation is small.
扣除系数随提速客车比例的增加先增大后变小,但变化幅度不大。
The recovery rate, calibration curve, coefficient of variation of the filter paper method are compared with the direct analytical method.
文中对滤纸洗脱法的回收率、标准曲线、变异系数等均与直接分析法进行了比较。
The recovery rate, calibration curve, coefficient of variation of the filter paper method are compared with the direct analytical method.
文中对滤纸洗脱法的回收率、标准曲线、变异系数等均与直接分析法进行了比较。
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