查询词典 method of difference

To better the application of PTV technique in complex surface flow field,an automatic image segmentation method based on frame difference and adaptive threshold was established,and particle signature identification was introduced,which bettered the effect of particle recognition and tracking in complex flow field.

为了改善粒子跟踪测速技术在复杂流场测速中的应用效果，本文采用基于帧间差分和自适应阈值的自动图像分割技术，引入粒子的特征标识，改善了复杂流场中粒子识别与运动跟踪的效果；另外，通过流速滤波、插值处理，提高了流速测量的精度。

Measurement method usually installed so that measurements of static gland ring end face to the vertical distance from the ring in the measurement of dynamic end-to end-cap of the vertical distance, the difference between the two is extremely tight mechanical seal edge.

通常情况的测量方法使测量安装好的静环端面至压盖端面的垂直距离，在测量动环端面至压盖端面的垂直距离，两者的差极为机械密封的紧力。

Two kinds of DALF, DALFA and DALFB, was isolated in the DEAE-cellulose column using process elution method, SDS-PAGE analysis revealed the difference between the two eluates was the different ratio of H:L of the twenty four subunits.

通过离子交换层析柱(DEAE-52)分步盐洗脱技术，分离到两种不同分子量的蛋白质组分(DALF_A和DALF_B)，通过SDS凝胶电泳分析证明DALF_A和DALF_B不同之处在于蛋白壳的H和L亚基之间结合比例不同，由此形成释放铁动力学特性和铁核中的磷铁组成比也存在一定差异。

The difference between the national "Code for design of metro"(GB50157-2003) and the NFPA130 "Standard for Fixed Guide-way Transit and Passenger Rail Systems" on calculation method for person evacuation time in the metro station fire is compared.

针对地铁车站火灾人员疏散时间计算方法的问题，比较研究国内现行《地铁设计规范》(GB50157-2003)和美国专门针对有轨交通系统的NFPA130标准的异同，其结果说明：国内设计规范关于人员疏散时间的计算方法存在不足；对区间隧道内列车着火的情况进行分析讨论，指出对列车在区间隧道内着火，且还能继续运行的情况，着火列车的运行速度对火势的发展以及人员疏散时间的影响是不可忽视的。

Simulations of rarefied gas flow over a cylinder were performed with and without this modified ALTS method, and the result shows that these modifications result in a significant reduction in the execution CPU time, but introduce little difference on the simulation resolution and the flow structure.

结果表明，改进后的自适应当地时间步长法能明显缩短流场达到稳定所需的计算时间，对流场模拟结果产生的影响却非常小。

Science and Technology, Nanjing 210094, JiangsuAbstract : The carbon gradient of carburized case of parts can be predicted by using the finite difference method.

摘 要：零件渗碳后渗层的碳浓度分布可以用有限差分法预测，而碳浓度的高低决定了工件淬火后的硬度。

Shown in the experiment, the power-consumption measured is basically as accurate as the one that based on the existing statistical method on average. Furthermore, the new modeling can reflect the difference of power-consumption when different programs access SPM. This technique has an important guiding significance to the access mode as the compliers optimize SPM.

实验结果表明，该功耗模型测量的能耗值在总体上与现有基于统计方法生成的功耗模型结果相一致，同时能反映不同应用程序访问SPM部件时的功耗差异，对编译器优化SPM部件的访问方式具有重要的指导意义。

The Lab space color system parameters of micro-aggregate such as cement,fly ash,slag powder can be tested by color difference method.

使用色差计可以定量测定水泥和粉煤灰、矿渣粉等微集料的Lab空间色彩体系的参数，这些参数可以为水泥和微集料色度评价和控制提供依据。

Plot of the difference absorbancy at these 3 wavelengths according to the so-called continuous variation method~([7]) clearfly demonstrates the formation of 3 complexes with the proportions of haematin: FMN=1:1, 1:2 and 1:4 in the order of decreasing affinity between the reactants.

老化血红素与FMN反应只能产生1：1的络合物，表现出一个差吸收峰(585mμ)在过量连二亚硫酸钠存在下差光谱形状略为不同，血红素及FMN皆为全还原型时，络合物络合能力降低一个数量级。

In the design of radial internal clearance for four row tapered roller bearing with tapered bore,Finite Element Analysis method is used to analyze and calculate the expanding difference between inner rings resulting from interference fit.

在圆锥孔四列圆锥滚子轴承径向游隙的设计中，利用有限元分析方法对过盈配合而导致的内圈膨胀量的差异进行了分析、计算，得到了该类轴承的各列径向游隙相互差，为轴承的游隙设计提供了依据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。