查询词典 standard deviations

Their heights were around four standard deviations below the 50th percentile of the normal growth curve.

他们的身高大约比正常生长曲线的第50个百分位数低4个标差准。

Simple designed experiments paired and unpaired comparison of means, approximate comparison of standard deviations and proportions.

设计简单的实验组和未配对的比较方法，比较近似的标准偏差和比例。

The recoveries of farrerol and quercetin are 98%~102%, and relative standard deviations are

方法的加入标准回收率为98%~102%，相对标准偏差为

The statistical result shows that the mean and standard deviations of the relative difference between the MBRO and radiosonde below 2100m are -2.0% and 7.3%, respectively.

统计结果显示，在2100 m以下，山基掩星折射率与探空折射率相对偏差的平均值为-2.0%，标准偏差为7.3％。

The results show that in the internal standard method the mathematical treatment of uniform distribution of NG in deterred layer has no effect on the order of magnitude of the diffusion coefficient, so the systematical deviations of the reconcentration profile obtained from the imperfection of calibration model can be neglected.

内标法与外标法的比对实验结果表明，在内标法中将钝感层硝化甘油做均匀分布的数学处理对扩散系数计算结果的数量级没有影响，因此由于数学模型的不完善带来的浓度分布曲线的系统偏差可以忽略不计。

The average recoveries of the method ranged from 89.2% to 102% with the relative standard deviations of 1.8%~ 9.1% at spiked level of 0.05~ 0.5 mg/kg. The limit of detection was 0.05 mg/kg in sarcocarp and soil, and that was 0.1 mg/kg in pericarp and whole orange.

柑橘果肉、果皮、全果和土壤中添加0.05～0.5 mg/kg多菌灵标准品的平均回收率为89.2%～102%，相对标准偏差为1.8%～9.1%；柑橘果肉和土壤中多菌灵的最低检测浓度为0.05 mg/kg，柑橘果皮和全果中多菌灵的最低检测浓度为0.1 mg/kg。

With these molecular parameters, we provide a mid-infrared frequency standard with deviations as small as 10~(-5)- 10~(-4)cm~(-1) in order from NIST spectral data.

我们利用双差分速度调制激光光谱技术，首次获得了CS~+A~2∏(v=1)-X~2∑~+(v=0)高分辨电子吸收光谱。

The experimental excess enthalpy data were correlated with Redlich-Kister equation and the standard deviations were all very small.

实验数据采用Redlich-Kister方程进行关联，标准偏差较小。

The t statistic measures how many estimated standard deviations is away from zero.

t统计量度量了估计值相对0偏离了多少个估计的标准差。

The average recoveries were 60.2%~125% and 64.5%~126% for the drugs in plasma and urine except those of perphenazine, thioridazine and chloropromazine in plasma were 37.6%~57.5%, 36.3%~48.3%, 52.4%~67.4%, respectively; trazodone and diazepam in urine were 100%~142% and 108%~177%, respectively. The relative standard deviations of all the drugs in plasma and urine were within 0.8%~26% and 2.6%~18%(n=6), respectively. The detection limits of the 4 barbitals ranged from 20 to 100 mg/L and those of the other drugs ranged from 0.05 to 2.0 mg/L.

血浆样品中待测组分的加标回收率除了奋乃静、硫利哒嗪和氯丙嗪的分别为37.6%～57.5%， 36.3%～48.3%和52.4%～67.4%外，尿液样品中待测组分的加标回收率除了曲唑酮和地西泮的分别为100%～142%和108%～177%外，血浆和尿液中其余待测组分的加标回收率分别为60.2%～125%和64.5%～126%，相对标准偏差分别为0.8%～26%和2.6%～18%(n=6)；除了巴比妥类药物的检出限为20～100 mg/L外，其余药物的检出限均为0.05～2.0 mg/L。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！