查询词典 at variance

The characteristic of engine working at different mounting way and different environment is analyzed. Selecting pump pressure, speed difference and its variance ratio as input, and current of pump power control and pressure difference control as output, fuzzy control is adopted to improve the power matching and energy saving control method.

分析了在不同安装方式和不同环境下发动机的工作特性，以液压泵的压力，转速差和转速差的变化率作为输入，泵功率控制电流和负载压差控制电流作为输出，采用模糊控制对动力系统的匹配与节能控制方法进行了优化。

A new feature, the variance of low-band energy ratio, is also introduced, which produces large improvements in classification accuracy at low SNR Performance of the proposed system is evaluated for different SNR.

考察了系统在不同的信噪比环境下的分类性能。

The effect of important factors on beer buffer capacity and pH, meanwhile, the optimum proportion of buffer substances at the maximum beer buffer capacity can be determined by means of orthogonal experiment with many targets and analysis of variance for correlation ratio.

通过多指标的正交实验及方差分析，确定了影响啤酒缓冲容量和pH值的主要因素以及缓冲容量最大时缓冲组分的最佳比例。

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公司专业生产选矿设备，提供工艺流程，选矿实验，安装指导www.lzkysb.cn温良禹0797-5745599搅拌设备，搅拌槽，高效搅拌槽，浸出槽，提升搅拌槽，矿用搅拌槽，矿用提升搅拌槽，搅拌机，矿用搅拌机，高效搅拌机，提升搅拌机，搅拌筒，搅拌桶，矿用搅拌桶，提升搅拌桶，公司生产的搅拌槽，提升式搅拌桶，高效搅拌槽，双叶轮搅拌槽，浸出槽主要用于浓度不大于30%和比重不大于3.5的矿浆与浮选药剂进行搅拌，该产品分XB和XBT提升式搅拌桶， XBT提升式搅拌桶在对矿浆进行搅拌的同时可将矿浆液面提升到一定的高度，为此提升式搅拌桶对没有落差的选矿场地极为有利主要由槽体，支架，电机，叶轮及传动轴等组成。

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公司专业生产选矿设备，提供工艺流程，选矿实验，安装指导 www.lzkysb.cn 温良禹0797-5745599搅拌设备，搅拌槽，高效搅拌槽，浸出槽，提升搅拌槽，矿用搅拌槽，矿用提升搅拌槽，搅拌机，矿用搅拌机，高效搅拌机，提升搅拌机，搅拌筒，搅拌桶，矿用搅拌桶，提升搅拌桶，公司生产的搅拌槽，提升式搅拌桶，高效搅拌槽，双叶轮搅拌槽，浸出槽主要用于浓度不大于30%和比重不大于3.5的矿浆与浮选药剂进行搅拌，该产品分XB和XBT提升式搅拌桶， XBT提升式搅拌桶在对矿浆进行搅拌的同时可将矿浆液面提升到一定的高度，为此提升式搅拌桶对没有落差的选矿场地极为有利主要由槽体，支架，电机，叶轮及传动轴等组成。

Comclusion: transpetrous presigmoid retrolabrinth approach was rational approach for surgery on petroclivus and -4- CPA; it抯 important for accomplish the surgery to study and master the anatomy and variance of this approach; there was relative anatomical relationship among those structure on posterior of petrous bone; AAMP was the extracranial mark of inflexion of TS and SS; LAM and PSC were obvious bone marks for operation; we can confirm the abraded range of petrous bone lean upon LAM and/or GSS beside abrading step by step as literature, and it抯 unnecessary and unrational to emphasize to show PSC if the surgical space was enough; preceding sigmoid sinus and high jugular bulb often appeared at right and would bring disadvantage effect; interspace ,between CN V and CNVII or CNVII and CNJXI, were available to reach clivus and manage the mass on the range.

经SS前迷路后入路是处理岩斜坡区、桥小脑角区病变理想的手术入路；研究和熟悉手术入路中的解剖结构及部分变异对指导手术十分必要；岩骨内测面的骨性结构之间有着相对稳定的空间关系；顶乳缝前角是SS和TS转接处在颅外的标志；IAM和PSC等结构可以作为手术中的重要骨性标志；以PSC确定岩骨的磨除范围是较安全和可靠的，但亦可以结合影像检查，以内耳道和乙状窦前缘为基点判定切除范围，如果操作空间足够，过分强调磨出半规管是不适当的；右侧GSS的宽度和深度较对侧大，SS前置和颈静脉球高位较对侧多见，这些都对右侧入路有不利的影响，但仍可以进行手术操作；三叉神经和面神经间隙及面l 神经和舌咽神经间隙方便到达斜坡并处理病变。l

The shift-variant property of the wavelet transform and three-dimension wavelet transform are also discussed in the thesis. And simulation experiment has been made exploringly for the motion estimation using Low-Band-Shift method aim at overcoming the temporal variance of the wavelet transform.

论文还对利用三维小波变换进行视频编码以及小波变换存在的移变性进行了分析讨论，并介绍了克服这种移变性的低子带位移运动估计的方法，探索性地进行了计算机仿真。

The result of variance of analysis showed that the germination capacity of treatment in 15,18,19,23,24,were all higher than 85 percent.15 treatment was best from single direction of germination capacity and 18 and 23 were best both from germination capacity and sparing irrigation ,namely when holard was 20%-25%,irrigation was 60m~3/hm~2.(2) Pn showed single peak curve at different holard and irrigation.

不同土壤含水量及不同坐水量处理时，光合速率在整个生育时期呈单峰曲线变化，不同土壤含水量处理均在抽雄期达到最大值，土壤含水量较高时，光合速率较高，变化迅速，土壤含水量较低时，光合速率也较低，变化缓慢。

One-way variance analysis showed that the density of Larix gmelini basic changes in the radial difference at 0.05 significant level.

通过单因素方差分析表明兴安落叶松基本密度在径向上的变化差异在0.05水平显著。

First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by Brewer, Durbin, Sampford , Des Raj , Murthy , Rao-Hartley-Cochran. Then, at the basis of Rao and Bayless's study , we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super-populations, and compare the stabilities of estimators of the methods that given above.

本文首先从理论上介绍了若干种不等概率抽样方法，它们的估计量、估计量的方差及其估计，其中包括有放回PPZ及PPS抽样，不放回不等概率抽样中的Brewer、Durbin、Sampford、Des Raj，Murthy、Rao-Hartley-Cochran等人的方法；其次，在Rao和Bayless两人就样本单元数n=2的情形对上述抽样方法进行比较的基础上，将总体随机地分成两个子总体，视每个子总体取自不同的线性超总体，在文中，我们利用计算机实现随机分组，并通过画图比较各方法估计量的稳定性，结果表明，对变异系数C.V。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。