查询词典 mean square deviation

By using the principle of least absolute deviation method , we will give a new priority method—least logarithm absolute deviation method.

利用最小一乘法原理，在层次分析中提出了一种新的排序方法——对数最小一乘法，并将其转化成线性规划问题求解，证明了对数最小一乘法的一些性质。

Earlier, when we calculated the range, the interquartile deviation, and average absolute deviation, the answers were expressed in the same units as the data itself.

当我们计算极差，四分点离差和平均绝对偏差时，答案的计量单位与数据单位量相同的。

When the random error is not subject to normal distribution, the least absolute deviation estimation is superior to the least squares estimation. In addition, the robustness of the least absolute deviation estimation is also better than that of the least squares estimation.

在随机误差不服从正态分布的问题中，最小一乘估计的统计性能优于最小二乘枯计；另外，最小一乘估计的稳健性更强。

For the key of vector- Distance algorithm , Curve fitting is used for the derivation of deviation angle algorithm, demonstrating the feasibility of deviation angle Algorithm and the error analysis.

针对矢量距离算法的关键，采用曲线拟合对计算偏离角的关系式进行了推导，论证了偏离角算法的可行性，对算法进行误差分析，用归纳的方法推导出计算磁短节中点与直井之间距离的关系式。

The regression equation can describe well the change of standard deviation of relative radiation error with solar zenith angle, standard deviation of height, and resolution of digital elevation model. The result demonstrates that it is necessary to consider terrain complexity when using moderate resolution of remotely sensed data.

利用拟合方程可以计算任意地形条件下，不同分辨率的卫星资料在不同太阳天顶角情况下，不考虑地形复杂性产生的平均地表入射太阳辐射的计算误差，结果表明，使用中分辨率的卫星资料计算地表太阳净辐射时，需要考虑地形复杂性。

In order to further understand the effect of deviation angle on the vertical resolution of the compensated neutron log, Monte Carlo simulation method was applied to study the vertical geometrical factors and formation sensitivity under different deviation angle conditions, furthermore the responses of the tool were simulated in laminations.

为了进一步认识井斜角对补偿中子测井纵向分辨率的影响，利用蒙特卡罗模拟方法，分析了在不同井斜角情况下测井仪器的纵向几何因子和地层灵敏度，并模拟了在薄地层中的仪器响应。

The results show, when the prism wedge angle is 4°, the transmitted laser beam changes about 1 μrad as the prism rotates 1′; when the small angle deviation on one side of the minimum deviation angle of each prism is controlled, the scanning range of laser beam in the horizontal and vertical direction is not less than 500 μrad, and the scanning precision of the device is superior to 0.2 μrad.

结果表明：取棱镜棱角α为4°时，棱镜每旋转1′，透射光束变化约1 μrad；分别控制双棱镜在其最小偏向角一侧小角度偏转，可以实现光束在水平方向和垂直方向500 μrad范围内的精确扫描，装置的扫描精度可以达到0.2 μrad。

Through finding a best fitting spherical surface, making the maximum deviation between aspheric surface and the best fitting spherical surface minimum, the maximum deviation at this time is just the maximum asphericity of aspheric surface.

寻找最接近球面，使其沿法线方向与非球面的最大偏离量最小，此时的最大偏离量即为非球面的最大非球面度。

Of the SFC in 2005 "on the money market funds and other investment-related issues notice" requirement, when the shadow pricing method to determine the net asset value of the Fund and the sharing of this Law Yu calculated the net asset value of the Fund deviation absolute value reached or exceeded 0.25 percent, the fund managers should be based on risk control of the need to adjust the portfolio, especially for the absolute degree of deviation to meet or exceed 0.5% of cases, fund managers should be prepared and the disclosure of the interim report.

在2005年"关于货币市场基金和其他投资相关问题的通知"的规定，当影子定价法确定的基金资产净值和本法于共享计算该基金的偏差绝对值达到或超过0.25个百分点，基金管理人应当对风险的需要调整组合的控制，特别是绝对偏离度达到或超过0.5％的情况下资产净值，基金经理应当编制和临时报告的披露。

In order to improve the measuring accuracy and efficiency, a high accuracy inspecting system for measuring the centroid and centroidal deviation of bullets based on three point method is designed. The working principle, relevant calculation formulae and the measuring equipment for measuring the centroid and centroidal deviation of bullets are presented, and the main factors affecting measuring precision are discussed. Then, a multiple measuring platform with automatic leveling and column structure autorotation of 90° is put forward.

为了提高其测量精度和效率，设计了基于三点法的高精度弹丸质偏心测量系统，介绍了测量原理、计算公式和测量设备，分析了测量误差产生的因素，提出了一种多测试平台和自动调平以及弹体自动旋转90°的设计思想。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。