mean variance meaning in Chinese
离均差
Examples
- Developed a new method for selecting optimal segmentation scale : mean variance method . from the graph many classes " optimal segmentation scales could be got . it proved that for different classes their optimal segmentation scale are different
后者是针对于一种地物类别而言的，影像对象多边形既不能太破碎，也不能边界模糊的分割尺度，该尺度下对象大小与特定的地物目标大小接近，且类别内部对象的光谱变异较小。 - By using ncep / ncar reanalysis data of height and wind , the inter - monthly lpac map , the climate lapc map , inter - annual anomaly map and mean variance map of monthly wind field of 850 and 500hpa and monthly height field of 850 , 500 , 150 , 30hpa are calculated in a globe - belt area , which situates between 30 s and 75 n , from december 1957 to december 1997 , according them we analysis the rule of the season transfer and anomaly of nh mean circulation . the results show that the climate map of lapc can describe the seasonal transfer process of large scale circulation better . the advance process of summer circulation establish is form south to north at the middle and lower level of the troposphere , that is reflected primly in the inter - monthly wind and pressure map of lapc ; at lower lever of stratosphere , the establish process is simulate to that of troposphere , and reflect of process of that the south asia high toward plateau ; at middle stratosphere the summer circulation establish begins at middle and high latitude initially , and then transmits to low latitude gradually , while the seasonal variability in mid - stratosphere is stronger than it in troposphere and low - stratosphere
利用ncep ncar再分析高度场和风场资料，计算了30 s 75 n球带区域1957年12月至1997年12月逐月850 、 500hpa风场及850 、 500 、 150 、 30hpa高度场月际局地型相似系数图、多年平均图(即气候lpac图) 、年际异常图及均方差图，在此基础上，分析了北半球平均环流季节转换及其异常的规律。分析表明，气候局地型相似系数图较好地给出了大尺度环流季节转换发生的过程：在对流层中、下部，风、压场月际局地型相似系数图清楚地反映了夏季型环流建立由南向北的推进过程；低平流层夏季型环流的建立与对流层接近，其中，南亚高压上高原过程有明显反映：中平流层，夏季型环流的建立明显表现为从中、高纬度开始，逐步向低纬传播的特征，且变化较对流层和低平流层明显。 - The error is related to the two rank partial derivative of the flux function to each factor and the mean variance distribution of each factor on each grid point . the statistical - dynamical parameterization scheme involves the both conditions , therefore , it is more practical for the east china moist region than the mosaic method
另而自乞计一动刀宁肠则院含考虑了要紊的二阶偏导数及其在网格元上的分布的均方差，因而该方案比马赛克法考虑更为周全(至少在东部涅润区如此) 。 - Based on the random factor method , considering the randomness of both the elastic module of the structures and the applied load , the finite element equations of the structures are built , and the computational expressions of the mean value and mean variance of the structural displacement response and stress response are developed by the algebra method
利用随机因子法，建立了结构的弹性模量和外载荷同时具有随机性时结构的有限元方程；利用代数综合法推导出结构位移和应力响应的均值、方差的计算表达式。