平均差

Although British schoolchildren perform reasonably well compared with those in other countries , average standards are not improving despite billions in extra spending , and a stubbornly long tail of underachievers straggles behind .

虽然说与其他国家相比，英国学生表现的略好一些，但数十亿额外开支并没有将学生的平均水平带动上去，并且还有一大群差等生在后面拖后腿。

Some minor vagabonds who have growth ability personality factor in the new environment are under the average level of Chinese people, which explains that they are bad in new environment's adaptiveness.

但在&在新的环境中有成长能力者的人格因素&中处于中国人常模的平均水平之下，说明他们在新环境中的适应能力较差。

A good balance between the dynamic property and the thermal-oxydative ageing property on the blend vulcanizates were obtained when curing system is SEV and the S/CZ/DM ratio of 1.5/1.5/0.5;There was a good balance among tensile strength and heat build-up and damping property on blend vulcanizes filled with moderate size carbon black;The mechanical properties of vulcanizate filled with N660/N330 and N660/N990 were medium between two carbon black filled individual.

补强填充体系对NR/ENR硫化胶的性能有较大的影响，选择粒径适中的炭黑品种N660作为补强剂，硫化胶在拉伸强度、疲劳生热和减震方面可以获得较好的平衡；N660/N330和N660/N990两种填充体系硫化胶的力学性能，基本上是单用一种炭黑所得硫化胶力学性能的加权平均；N660/白炭黑(40/20)和N660/碳酸钙(45/15)填充体系硫化胶的力学性能与相同用量下N660单用时的相当，而N660/陶土填充体系硫化胶的力学性能较差。

The method includes dividing a digital image, formed from M rows and N columns of pixels, into a plurality of band-shaped areas by partitioning at each of a prescribed number of rows; averaging, for each column, the gradation values of pixels in said band-shaped areas for each of said plurality of band-shaped areas; computing an approximation line which approximates, in each of said plurality of band-shaped areas, a distribution of said average of gradation values; and judging whether there exists a succession of d columns at which the difference between said gradation value derived from said approximation line and said average of gradation values for each column exceeds a prescribed threshold.

该方法包括：通过以规定行数为单位进行分割，将由M行N列个像素形成的数字图像划分为多个带状区域；对于所述多个带状区域的每一个，针对各列来对所述带状区域中的像素的浓淡值求平均；计算近似线，该近似线在所述多个带状区域的每一个中近似于所述浓淡值的平均值的分布；并且判断是否存在如下连续的d个列，在所述连续的d个列中，从所述近似线得到的所述浓淡值与针对各列的所述浓淡值的平均值之间的差值超出一指定阈值。

Firstly, every wavelet base is employed to fuse the multi-source image based on local energy rule, and then a set of the primary fusion images are obtained. Next, these primary fusion images are fused to obtain final fusion image within spatial domain based on local varianc's weighted average rule.

该方法首先用每个小波基对源图像进行基于局部能量的融合，得到多幅初级融合图像，然后对初级融合图像在空间域内再进行基于局部方差加权平均融合，得到最终融合图像。

The preparation of sodium salt of phytic acid degrease Rice bran dip - dye steep liquor with the method of absorption of ion exchange resin is studied.

开发了用离子交换树脂吸附法以脱脂米糠浸泡液为原料生产植酸钠的新工艺，采用正交设计及极差分析法确定了最佳工艺条件，植酸的平均收率达到96％以上。

Using analysis of correlation between meteorological output index of cotton and factor series of 9 types of cumulative temperature formed by continuously temperature limits at the interval of 0.1℃ in Akesu cotton area, several conclusion obtained are as follows:(1)The correlation with temperature sum of daily maximum temperature is the best, cumulative temperature of daily mean temperature is better, and temperature sum of daily minimum temperature is the worst.

通过阿克苏棉区棉花产量指数与以 0 。1℃为间隔的连续变动温度界限值所形成的 9种积温的因子序列的相关性分析，得到以下几点结论：(1 )相关性以日最高温度的温度和为最好，日平均温度积温次之，日最低温度的温度和最差。

County-wide average of 1972 meters above sea level, the lowest 1228 meters (six peaks in the town feel imperial East Village), the highest 2716 meters, the relative elevation 1488 meters.

全县平均海拔1972米，最低1228米，最高2716米，相对高差1488米。

From 1973 to present, 8 satellites with 9 altimeters are launched, and many millions of altimetry measurements have been gathered and many characteristics of the sea surface have been investigated in these missions.

本文研究的主要目的和内容是系统地总结卫星测高技术的发展历史、应用及前景；制定测高数据的编辑准则和改善各种地球物理改正的精度；研究区域交叉点平差方法以进一步提高 Geosat 、 ERS-1和 ERS-2的径向轨道精度；完善由多种测高数据建立全球平均海面高模型的理论与方法，进而建立全球海面高模型；总结并研究利用测高数据恢复海洋重力场和分离海面地形的方法，确定中国海域的重力场；探讨海陆大地水准面拼接的问题，实现中国海陆大地水准面的拼接。

The average is thus a poor representation of the large variability of the stress amplitudes in the crust.

平均的情况则只能较差的反映地壳中应力振幅非常大不同的状况。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。