雅虎和微软都认为，基于未公开的内部测定统计，他们搜索引擎的搜索结果和Google的质量相差无几。
Both Yahoo and Microsoft contend that their search engines' results have achieved parity in quality with Google's, based on internal statistical measurements that they do not disclose publicly.
氨基酸替代数的估计是测定蛋白质分子间进化距离的基本统计方法，是研究蛋白质分子进化的基础。
Estimating of substitution number of amino acids is basic statistic methods of measuring evolution distance between proteins, which is the base of researching molecular evolution of protein.
由于系统方程是时变的，在测量过程中，系统噪声和观测噪声的统计特性等很难精确地估计或测定，事实上很多误差模型都不能简单的设为白噪声。
Because the system equation is changed with time, during the measurement, the statistic character of the system noise and the observation noise cannot be estimated or be determined accurately.
可以访问当前AT&TGlobalIPNetwork统计数据，以了解 WWW骨干网络的延迟测定数据。
You can access the current AT&T Global IP Network statistics for the WWW backbone with the latency metrics.
主要结果的测定∶统计分析评估各种方法之间测量数据差异，及不同方法的选择是否能够改变治疗的效果。
Main Outcome Measurements: Statistical analysis evaluating differences in measured data between methods and whether choice of method might alter treatment.
用此方法测定人体肱二头肌中点脂肪厚度，再加上对身高、体重的测量，经过统计回归可得到人体脂肪总体含量的百分值。
With height and weight measurement thickness of fat in biceps get by this method can obtain total content of body fat by statistical regressive method.
统计学分析计量资料差异性测定采用方差分析。
Statistics analysis: The difference of measurement data was detected by analysis of variance.
目的为了提高避暗反应测定动物学习记忆功能的敏感性，本实验对三种实验及统计方法进行了评价。
Objective To compare three tests and statistical methods in the measurement sensitivity of learning and memory function in rat by step through avoidance response.
用简正振动方式理论分析了混响室内声功率测定问题，求得了严格公式和统计公式，解决了测试中多年未有定论的问题。
Sound power determination in reverberation chambers is discussed in the light of normal mode theory. Rigorous as well as statistical formulas are found, and the aged problem of.
用于测定棉、毛、丝、麻、化纤等纱线的捻度，并能自动打印测试数据和统计结果。
Used for measurement twist of the cotton, wool, silk, bast & chemical fibre yarn, it cans print the test data and statistical result automatically.
本文采用原子吸收分光光度法，测定铁强化盐中微量铁。用数理统计方法检证了方法的可靠性。
The paper reports atomic absorption spectrum for determination of trace Fe in additional Fe salt. The reliability of this method is examined by mathematical statistics way.
利用数理统计方法对无催化-微波消解光度法测定炼油污水COD的可行性进行了分析。
The feasibility of COD determination in refinery sewage was analyzed by spectrometric method of catalysis-free microwave digestion with mathematical statistic method.
用数理统计方法改进了邻菲啰啉分光光度法测定铁的条件试验和标准曲线，有效地提高了分析结果的准确性。
The conditional test to measure iron by means of O-phenanthroline spectrophotometry and the standard curve are improved with mathematical statistics.
介绍了对55种酒样中甲醇及杂醇油含量测定的结果，并对其含量分布进行了统计分析。
The author introduced the results of the determination of the methanol and multiple_alcohol content of 55 kinds of wine, and made a statistical analysis of their content distribution.
基于这个结论，本文提出了用数字图像处理的方法来实现煤显微组分的定量统计和镜质体反射率的测定。
Based on this conclusion, the paper proposed to use image processing methods to achieve the quantitative statistics of coal macerals and the measurement of vitrinite reflectance.
常用的煤岩学指标主要有显微组分的定量统计和镜质体反射率的测定。
Coal maceral indexes mainly include the quantitative statistics of coal macerals and the measurement of vitrinite reflectance.
目的：比较用于处理包含未检出值的痕量测定数据的次序统计量回归方法与经典替换方法的估计效果。
Objective: the purpose of this study was to compare the performance of regression on order statistics(ROS) and substitution methods in estimation of nondetects.
根据因子分析的基本原理，按煤矿企业现有统计指标建立了测定集约化水平的指标体系。
According to the theory of factors analysis, this paper establishes best target system for determining centralized level of mine.
本文运用百分率趋势检验和逐步回归等统计方法，测定和分析了武汉市江岸区居民死亡的季节变动规律。
Using tendency test and stepwise regression, and other statistical methods, this article measured and analyzed the seasonal variation of inhabitatants' deaths in Jiangan region in Wuhan City.
在测定引信解除保险距离的感度用数理统计试验方法中，兰利法由于理论上可使用较少的试验样本量而应用日渐广泛。
In mathematically statistical test methods that were used to get arming distance of fuze, Langlie method was applied more and more wider because it only USES a few samples.
对两种典型的坏帐率统计方法进行比较，发现传统的统计方法存在很大的误差，从而影响信用风险的测定精度。
By comparing two typical statistics methods of default rate, the article found a serious error in the statistics method that will impact on the precision of credit risk measurement.
为提高标准曲线的制作精度，探讨了重复测定条件下，标准曲线的统计比较与合并估计方法．。
To raise the accuracy in the drawing both the statistical comparison and the method of combined estimation of the standard Curve were approached the condition of repeateddetermination.
结果三种方法测定结果无统计学差异。
Results The results got by the three methods have no differences in statistics.
方法：以总黄酮含量为测定指标，采用正交试验法，通过统计学分析确定最佳提取工艺条件。
METHODS Taking the content of general flavonoids as guideline, the best extraction condition was determined with orthogonal experiments and statistical analysis.
方法应用郭峰法测定原发性高血脂症患者红细胞免疫功能指标，同步测定血脂水平，并进行统计分析。
Methods the indexes of erythrocyte immunologic function and the blood lipid content in patients with primary hyperlipoidemia were determined by Guofeng methods.
方法对2007年及2008年的血药浓度监测中随行质控样本测定值进行统计学分析。
Methods Statistical analysis was conducted on Digoxin control data determined together with the patient samples of 2007 and 2008.
用于全自动测定单根纱线的断裂强力和断裂伸长，打印测试数据和统计结果。
Used for measure tensile strength and breaking elongation of single yarn and print statistic results.
方法采用《消毒技术规范》(2002年版)有效氯含量测定方法以及标准偏差、方和根等统计学方法。
Methods Valid chlorine content measurement method and statistical methods such as standard deviation, and square and root etc in "Technical standard For Disinfection" (2002 version) was adopted.
通过对模型进行数理统计检验，在显著性水平大于5%的条件下，其预测值与测定值不存在显著性差异。
The statistical results showed that there was no significant difference between the predicted and found values when the level of significance was over 5%.
双重星系或天体系统，用动力学方法测定其质量时，观测到的视向速度和距离间距，都是各自值的投影值，可用统计方法，求出一个关于它们的平均投影因子。
Both of the observed radial velocity and separation being projective values, in order to determine the mass of binary galaxies the average projection factor may be derived by a statistical method.
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