平均值

The moduli of nacres in parallel and oblique directions with respect to the growing trace are 60.3 GPa and 56.7 GPa, while in perpendicular direction the elastic modulus is 48 GPa.

结果表明，在平行和倾斜于生长纹路方向上弹性模量的平均值分别为60.3 GPa和56.7 GPa，而垂直于纹路方向的为48 GPa，呈现出各向异性。

The average of sum concentrations of five BTEX varied from 10.61 to 253.35μg/m^3.Toluene was the most abundant BTEX. All concentrations of benzene, toluene and xylenes met the Indoor air quality standard of China, and were lower than those observed in the hospitals of other countries.

结果表明，4家医院的5种BTEX的总浓度平均值为10.61~253.35μg/m 3.5种BTEX中，以甲苯的浓度最高，但均低于国家室内空气质量标准的阈值，也低于国外医院室内空气BTEX的浓度。

Calculates the mean of samples, weights or variates.

计算样本、权重或变值的平均值。

The content of different nutrient was variated in:change of soil organic matter in the rate of 6.32～35.83 g/kg,the coefficient variation was 29.72%,change of the soil available nutrient content was not the same,to the most obvious avail-P,the rate of change for the 4.00 to 91.60 mg/kg,the coefficient variation 68.81%,avail-N smaller the range, changes in the rate of 40～182 mg/kg,the coefficient of variation was 26.66%.The average of all soil nutrients are in the middle level of the plentiful-lack Index of available nutrient.

涿州市不同元素养分含量变异情况各不相同：土壤有机质变幅不大，变化幅度为6.32～35.83g/kg，变异系数为29.72%；土壤速效养分含量变幅不相同，以速效磷最为明显，变化幅度为4.00～91.60mg/kg，变异系数达68.81%；碱解氮的变幅较小，变化幅度为40～182mg/kg，变异系数达26.66%，各速效养分的平均值均在丰缺指标所划定的中等养分含量水平。

Methods: Heart rate variability was detected in 58 patients with normal renal functions, 61 patients with compensatory renal functions, 37 patients with decompensated renal functions, 33 patients with renal failure and 21 patients with uraemia and the patients all had essential hypertension.

选择210例原发性高血压患者进行24小时动态心电图监测，分析HRV各相指标：SDNN［所有窦性心率R-R间期的标准差］，SDANN（全程记录中每5分钟NN间期平均值的标准差），PNN50（全程记录中相邻NN间期差值＞50ms的个数）和RMSSD（相邻NN间期差值的均方根）。

Compared with the original powder, the content of Si in the three troches increased by 8.09, 14.68, 12.64 times respectively. Accordingly, they were added with a little amount of silica gel. The content of trace element such as Ca, Fe, Zn in sample 4 have optimized clearly.

结果表明：3种片剂中均添加了部分晶体乳糖；根据3种片剂中Si含量比原粉的Si平均值分别增加了8.09、14.68、12.64倍的差异，可知片剂中均添加了微量的硅胶；样品4中微量元素Ca、Fe、Zn的含量明显优化。

The effect of moisture content on tensile strength of tracheids is less than the effect on MOE.

含水率对管胞的抗拉强度影响更不显著，饱水态下抗拉强度只比气干态低1.5-10％（平均值为2.7％）。

A, b, and c are curve-fitting constants in the curve equation y="1"–a×(1–x)c and the complementary-curve equation y="a"×(1–x)c, where a is a coefficient, b is the lower limit for x and is less than one, and c is a power constant.

对绘曲线装置，y为规一化输出位变量，x为非零平均值（小于1）到1的规一化输入模拟电压。a、b和c为用曲线方程y=1–a×(1–x)c拟合的常数，补充曲线方程y=a×(1–x)c，在此，a为系数，b为x的较低限制，且小于1，c为功率常数。

The problem for the euro area is that it has trouble-spots, like Greece, with worse than average finances, and no means to tap the credit of their thriftier brethren.

欧元区的问题是，它有如希腊这样的问题点，其金融状况要劣于欧元区的平均值，并且到目前为止都没有很好的使用其更节俭的兄弟国家提供的信贷资金。

The synodic month is the time from one new Moon to the next. It ranges from 29.27 days to 29.84 days with a mean of 29.53 days.

朔望月是一个新月到下一个新月的时间，它的时长从29.27天~29.84天，平均值是29.53天。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。