查询词典 standard deviation

Methods:We selected a group of 164 healthy volunteers and MRI scan in lumbosacral spine was performed for everyone.We obtained some measurements on MR workstation after exams such as: Antero-posterior diameter of the epidural fat located ventrally and dorsally to the dural sac of S_1 to S_5 level.We obtained mean distances and standard deviation s of all the values and then made a conclusion.

选择164例正常成年人(平均年龄41.4岁)行腰骶椎磁共振扫描，分别测量骶椎各水平前、后硬膜外脂肪的厚度，获得均数及标准差，并以性别、年龄及体重指数分组，进行组间比较及相关因素分析。

What I am trying to say is that you can pencil in Amar'e for 21 and 9 because those numbers come with next to no standard deviation.

我想要说的是你可以把小斯标签为场均21分9篮板的好球员，因为从他的数据不会跟著什麽标准偏差。

In this method, blue-violet compound formed through reaction between amido and nihydrin hydrate can be detected at 570nm wavelength, and its content is proportional to the peak area. This method is easy to use, sensitive, and saving time. Its average recovery is 98.4%, and relative standard deviation is 1.0%.

试验主要利用氨基酸的氨基与茚三酮水合物反应可生成蓝紫色化合物，该化合物最大吸收峰在570nm波长处，且此吸收峰值的大小与氨基酸释放出的氨基成正比，因此可作为氨基酸定量分析方法。

We applied spectrophotometric method to detect the total content of barbaloin in the hydrolysis of aloe vera gels. Relative standard deviation was 2.39%and recovery 90.1%.

本文用分光光度法测定水解后的市售某芦荟胶囊中芦荟甙的总含量，并进行了回收率和精密度试验，结果较为满意。

The content involves Digital Filter, Auto Correlation, Cross Correlation, mean and standard deviation, probability density and probability distribution statistic, as well as Auto Power Spectrum based on Fast Flourier Transfer, Correct Power Spectrum, Cestrum and Frequency Response. The Short-time Flourier Transfer and Wavelet Transfer are included in the analysis program.

具体内容包括：数字滤波、时域加窗、自相关计算与互相关处理、均值和方差计算、概率密度和概率分布统计，快速傅立叶变换基础上的自功率谱、互功率谱、频率响应函数、相关函数、倒频谱分析；基于短时傅立叶分析的联合时频分析、小波变换等。

Experimental results showed that the relative average error of the proposed method, the hydrazine hydrate gravimetry and the ammonium chloroplatinate gravimetry is -0.14%~+0.13%,-0.21%~+0.21% and -0.13%~+0.14%, respectively, and the relative standard deviation of three methods is 0.05%~0.08%, 0.11%~0.14% and 0.08%~0.09%, respectively, for Pt content from 37% to 65%. Therefore, the accuracy and precision of the proposed method are almost the same with hydrazine hydrate gravimetry, and are a little better than ammonium chloroplatinate gravimetry. But it is rapid, economic, secure, easy to operate and environmental friendly.

结果表明：测定37%~65%的Pt含量，本法、氯铂酸氨重量法、水合肼还原重量法的相对平均误差分别为-0.14%~+0.13%、-0.21%~+0.21%、-0.13%~+0.14%，相对标准偏差分别为0.05%~0.08%、0.11%~0.14%、0.08%~0.09%，故本法的准确度和精密度与水合肼还原重量法的基本一致，较氯铂酸氨重量法的略好；但本法消解快速、节能、安全，操作简便，对环境污染程度小，适宜推广运用。

After the classific mapping, this dissertation uses the Standard Deviation and maximum Value of the comgfort pencentege that different passive methods could reach within 12 months to define the real capacity of each passive methods.

此外本文还利用各被动式设计策略在一年中12个月的有效时间值的标准方差和最大值结合的办法来判断各项策略的实际有效程度。

Results: Recoveries over 90%,the relative standard deviation of sample (n=6) was 1.8% for dichloroacetic acid and 1.9% for trichloroacetic acid and the detection limit was 0.83 μg/L and 0.4 μg/L respectively.

结果：本法的加标回收率在90%以上，6份平行样品测定的相对标准偏差二氯乙酸为1.8%，三氯乙酸为1.9%，检出限依次为0.83μg/L和0.4μg/L。

The method is simple and rapid, and it has been applied to the determination of benzaldehyde and benzoic acid in electrosynthetic samples with satisfactory results. The recovery was between 91.9% to 106.5% and 95.8% to 99.2% respectively, and the relative standard deviation was less than 0.15% and 0.92%, respectively.

本法简便、快速，应用干多个电合成产品中苯甲醛和苯甲酸含量的测定，均获得比较满意的结果，其加标回收率分别在91.9%-106.5%和95.8%-99.2%之间，相对标准偏差分别小于0.15%和0.92%。

The age, sex, mean keratometer value, and axial length preoperatively in patients with cataractous eyes were analyzed. The mean value and standard deviation were calculated in this study.

分析其年龄、性别、术前平均角膜曲度及眼轴长度，统计其平均值及標准差。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"