几何平均值

Moreover,thc rationality about calculating tolerance unit by using the grometrical average is discusscd in comparison with relative reeor by using the midline value which is in a basis diameter step.

本文给出了几何平均值与算术平均值最大相对误差关系的证明，并通过对尺寸分段内按中线值的相对误差的比较，进一步论述了按几何平均值计算公差单位的合理性。

According to that characteristic and based on the differential equation of the deformed surface of the orthotropic plate, with one principal direction size fixed, changing another principal direction size linearly, maintaining elasticity coefficient the same as in the first principal direction and Poisson ratio equal to the geometric mean of two principal Poisson ratios, the original orthogonal plate is equivalent to an isotropic plate. Results obtained show that the deflections of the equivalent isotropic plate are the same as the deflections of the original orthotropic plate at the corresponding points, the forces of the correspondent points have simple relations.

根据这一特性、从正交各向异性板挠曲面的偏微分方程出发，保持一个主方向尺寸不变，另一主方向的尺寸做线性缩放，保持弹性模量与第一主方向相同，泊松比取2个主方向泊松比的几何平均值，将这类正交各向异性板等效为一块各向同性板；通过分析得到：各向同性板任意点的挠度就是原正交各向异性板对应点的挠度，各对应点内力之间存在简单的比例关系，该文的方法将为工程技术人员提供方便，同时可以更加直观的认识正交各向异性板的受力。

There are two means to measure the average prices of the assets in an Asian option theoretically:with the arithmetic average and with the geometric average.

亚式期权有两种理论上的表示方式，即采用算术平均法计算资产价格的平均值和采用几何平均法计算资产价格的平均值。

B ased on capillary pressure data from sem i-permeable clapboard, relationship betw een T2 geometric average value and po rous structure parameters can be obtaine d, and also a method to determine porous structure parameters be found by using MRIL data.

本研究以半渗透隔板的毛管压力资料为基础，建立了核磁共振测井中的T2几何平均值与孔隙结构参数之间的关系，并建立了应用核磁共振测井资料确定储层微观孔隙结构参数的方法。

The geometric mean of the last and the second last concentration was calculated and taken as the individual threshold.

这种采用初步感官实验中最后一次和倒数第二次浓度的几何平均值经过测算后用作个人阈值。

The geometric mean of the half-peak width and the down time of the induced voltage was 0.87 and 2.9 μs, respectively.

感应电压的半峰值宽度和下降时间的几何平均值分别为0.87和2.9 μs。

In 18 cases of MS with blood collected before disease onset, serum geometric mean titers of antibodies to EBV but not CMV were higher than in controls.

有18名MS患者的血液标本，在发病之前被采集，其血清抗EBV抗体滴度的几何平均值，高于对照组，而抗巨细胞病毒的抗体滴度，在两组之间没有差别。

The highest IgE level was observed in the group infected by hookworm, with an arithmetic mean value of 1,298 IU/ml (11.6 times higher than the normal) and a geometric mean of 578 IU/ml (9.2 times that of normal).

IgE值在感染羣（算术平均值：898±1，613IU/ml，几何平均值：447IU/ml显的高於正常对照羣(112±105IU/ml， P.01)， 90%左右的感染学童IgE值高於正常对照羣的平均值，63.3%有明显的升高现象（大於正常对照羣的Mean+2SD）。

The weighted arithmetic-geometric mean inequality is a very important inequality in mathematics.

加权 算术——几何平均值不等式是数学中的一个重要不等式。

The IgE levels in other groups, in decreasing order, were 517 IU/ml for ascariasis, 514IU/ml for mixed enterobiasis and hookworm infection, 495 IU/ml for mixed ascariasis and enterobiasis, 450IU/ml for trichuriasis, 336IU/ml for mixed trichuriasis and enterobiasis, and 330 IU/ml for enterobiasis.

所有的感染羣中以钩虫感染羣的IgE值最高，其算术平均值1，298IU/ml，是正常对照羣的11.6倍，几何平均值为578IU/ml，其他感染羣IgE的几何平均值，依值的高低顺序是蛔虫单独(517IU/ml)，钧虫与蛲虫混合(514IU/ml)，蛔虫与蛲虫混合(495IU/ml)，鞭虫单独(450IU/ml)，鞭虫与蛲虫混合(336IU/ml)，蛲虫单独(330IU/ml)等感染羣。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。