查询词典 mean square deviation

I do not know whether the recall, China Central Television has reported that after the National Day in Tiananmen Square, remnants of chewing gum everywhere, 40 million square meters of Tiananmen Square, actually 600,000 chewing gum residues, and some less than one square meter of the ground, as many as nine of chewing gum stains, chewing gum crowded Tiananmen Square, scarred and sacred and solemn form a strong contrast.

不知大家是否记得，中央电视台曾经报道，国庆节后的天安门广场，随处可见口香糖的残迹，40万平方米的天安门广场上竟60万块口香糖残渣，有的不到一平方米的地面上，竟然有9块口香糖污迹，密密麻麻的口香糖斑痕与天安门广场的神圣和庄严形成了强烈的反差。

Fangxing and many big projects are in the state of slow digestion, such as Suzhou River north of the region over three rooms of 140 square metres has been encountered sales resistance, there are 160 square metres viruses, Hongkou 150 square metres, offering 115 square meters, 140 square-Minhang Fangxing many have become "resistance plate."

而不少大房型楼盘都处于缓慢消化状态，如苏州河以北区域140平方米以上的三房已遭遇销售阻力，还有徐汇160平方米、虹口150平方米、杨浦115平方米、闵行140平方米以上的房型不少都已成为&阻力盘&。

In this article, the effect on the surface topography of the same material was analyzed by different processing methods, the value of surface parameter arithmetic mean R, root-mean-square roughness R and gradient root-mean-square value Z were used to appreciate the surface topography, and the data were processed with the software Matlab.

分析不同加工方法对同一种材料表面形貌的影响，采用表面形貌统计参数中的轮廓高度算术平均值R、轮廓高度均方根值R、坡度均方根值Z，对表面形貌进行评价，结果表明，准分子激光加工表面的R、R，和Z，值均比研磨加工表面小。

When investors are in the treasury secondary market, they have to undertake two kinds of risks: the first one is yield risk, that is, return of investment is lower than inflation rate. This risk can be depicted as the deviation between the ROI and the inflation rate. Secondly, fluctuation risk in the treasury secondary market, that is, the uncertain fluctuation risk may be bullish or bearish in the treasury market.This risk can be depicted as the square deviation of the treasury price in the secondary market.

在国债现货二级市场上的投资者，要承担的风险主要有两种：第一种风险是收益率风险，也就是投资收益率可能低于通货膨胀率的风险，这种风险可以用与通货膨胀率相比较的差值的大小来描述；第二种风险是二级市场价格波动性风险，也就是市场价格上、下波动的不确定性风险，这种风险可以用二级市场价格的标准差来描述。

For the prediction deviation, it is concluded that when the trend line of the Regression of the Key Parameters uses the largest value of the R square, the predicted deviation can be smaller.

在预测误差值方面，当系统内关键参数的趋势回归线取R平方最大时，可以得到较小的预测误差。

The root mean square error for regressed rainfall is around 65﹪ of the standard deviation and about 15﹪ of the mean rainfall.

回归的平方根误差是其标准差的60％和平均雨量的15％。

Monte Carlo and self-adaptive multi-objective genetic algorithm were applied to solve the multi-objective robust optimization of suspension parameters, taking the statistic mean and standard deviation of root-mean-square value of the vertical acceleration of vehicle body and the dynamic load of front and rear tires as objective functions.

以某载货汽车的四自由度悬架模型为研究对象，同时考虑制造精度的影响，以车身垂直加速度、前后轮胎动载荷的均方根值的统计均值和方差为目标函数，采用蒙特卡罗抽样法和自适应多目标遗传算法对悬架参数进行稳健优化。

First, we discuss several theories of risk measures respectively such as theories ofcoherent measures of risk, spectral measures of risk and distortion measures of risk.Within the framework of these theories, we discuss and compare standard deviation,mean absolute deviation, lower partial moment, Ginis difference, VaR, CVaR and soon. We conclude that CVaR is superior to other measures with respect to theoreticalproperties.

首先，本文分别讨论了一致风险测度理论、谱风险测度理论、失真风险测度理论和随机占优一致风险测度理论等风险度量评价理论，在这些理论框架内讨论和比较了标准差、平均绝对离差、下偏位矩、基尼均差、VaR以及CVaR等风险度量。

By 35. 18°. The standard deviation σ was representative of mean deviation angle 〓, which characterized commendably the degree of misalignment grains.

当取向磁场为1.5T，粉末的松装密度各为23％和32.3％时，平均取向度分别为0.945和0.892，与之对应的磁通分布标准均方差为3.654和6.688。

There are also closed centers embedded on the belt, appearing zonal non-uniformity. The classic method of zonal deviation can just depict the zonal non-uniformity of subtropical high partly, while meridional deviation from the zonal mean along the equator can describe both the belt and the centers on it, i.

用传统的纬向偏差仅仅能部分地描述副高的纬向不均匀；而用新引进的相对于赤道的纬向平均的经向偏差可以同时描述副高带及其上单体的经向和纬向不均匀。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。