arithmetical mean

mean bore diameter : arithmetical mean of the largest and smallest single bore diameters in one plane .

平均内径：同一平面上最大和最小内径的算术平均值。

arithmetical mean deviation of the profile

轮廓算术平均偏差

ways to increase precision, such as arithmetical mean and implant control point, were studied and their principles and characters were analyzed and discussed.

研究了算术平均值法、加入控制点法等多种提高精度的方法，分析和讨论了其原理和特点。

The arithmetical mean concentrations of CO and NO emissions of EFI cars were calculated and their absolute values were predominantly contributed by high concentrations with low frequency.

对电喷车的CO和NO排放浓度做算术平均，其绝对值主要由出现频率少的高浓度值所贡献。

here the roughness will be described by the maximum height of the irregularities rmax and the arithmetical mean value ra.

这里的粗糙度将描述的最大高度不规则的拒绝和算术平均值拉。

it was reasonable to evaluate aggregates surface texture by arithmetical mean deviation r α; when other factors were fixed, high-temperature stability, moisture stability and low-temperature anti-cracking of asphalt mixtures became better with the augment of arithmetical mean deviation r α.

算术平均偏差对集料表面纹理的评定是合理有效的；其他条件相同的情况下，粗集料表面纹理的Rα值越大，沥青混合料的高温稳定性、水稳定性和低温抗裂性能越好。

On-Line Measurement of Arithmetical Mean Slope of Industrial Surface Using the Laser Scattered Light Cone Method

用激光散射光锥法在线测量工件表面的算术平均斜率

mean bore diameter: arithmetical mean of the largest and smallest single bore diameters in one plane.

平均内径：同一平面上最大和最小内径的算术平均值。

arithmetical mean deviation of the ( roughness) profile

（粗糙度）轮廓的算术平均偏差

The mathematical mean of the physical quantity has multiple expressions forms, including arithmetical mean and geometric mean, etc.

目的：探讨均值、中位数和几何均值三种统计方法对尿氟指标的影响和相互间有无差异。

arithmetical mean deviation of the roughness profile

粗糙度轮廓的算术平均偏差

when aggregate surfaces were plated by aluminum film, measurement results accorded with real condition of surface texture. finally, roughness of aggregates surface texture was evaluated quantitatively by arithmetical mean deviation and average wave length respectively.

通过对集料表面进行镀膜处理，使测量结果反映了集料表面纹理的真实情况，最后分别采用算术平均偏差和平均波长定量评价了集料表面纹理的粗糙度。