变化系数

The simulation results show that calculated tortuosities varies with network connectivity as well as the Thiele modulus.This work also suggests that tortuosities obtained under diffusion-only conditions can only be used under the strong reaction control conditions.

模拟结果表明，计算出的曲折因子既是孔网络配位数的函数，又随Thiele模数的变化而不同，在纯扩散条件下测得的有效扩散系数只能应用于扩散影响不严重的反应扩散区域。

The simulation results show that calculated tortuosities varies with network connectivity as well as the Thiele modulus.This work also suggests that tortuosities obtained under diffusion-only conditions can only be used under the strong reaction control conditions.

模拟结果表明，计算出的曲折因子既是孔网络配位数的函数，又随Thiele模数的变化而不同，在纯扩散条件下测得的有效扩散系数只能应用於扩散影响不严重的反应扩散区域。

Moreover, the contribution of the above three kind of interaction on the activity coefficient of solvent as well as their dependence on the temperature and liquid composition was analyzed using the regressed model parameters, which laid a foundation for the further improvement of the model.

另外，利用关联结果，分析了上述三种作用对溶剂活度系数的贡献随温度和溶液组成的变化规律，这为进一步完善模型奠定了基础。

Therefore, the knowledge of distribution of air velocity, surface heat transfer coefficient and temperature inside all the air regions in electric machine is very important.

因而，了解发电机转子风道中各空气区域内的速度分布、传热系数变化及温度分布是非常重要的。

Based on the above theories, some vibration characteristics of longitudinal acoustic horns are analyzed with finite element analysis software ANSYS. Some factors influence to large end amplitude distribution is studied such as big end diameter, length of horn, and diameter ratio of big end to small one. In addition, we carry on analysis and research to resonance frequency of large cross-section acoustic horn, amplitude magnification factor, wave node position of horn, transverse vibration situation and so on, and some related change rules are obtained.

在此基础上，通过有限元分析软件ANSYS对纵向超声变幅杆进行了振动特性分析，研究了变幅杆的大端直径、变幅杆长度、大小端面直径比对大端面振幅分布的影响，并对大截面变幅杆的谐振频率、振幅放大系数、变幅杆的波节点位置，横向振动分布等进行了分析研究，总结了相关的变化规律。

With the increase of Reynolds number, the resistance coefficient decreases, and beyond a certain value of Re, it approaches a constant. The effects of the p/e, e/D and rib angle on resistance coefficient in this Reynolds number range were correlated by a power-law equation.

首先，本文首次对弯头中也布置粗糙元的九种转弯通道及相应的光通道进行了静压及阻力测定，得出了阻力系数随p/e（p/e=5，10，20），e/D（e/D=0.025，0.05，0.10）及角度α（α=90°，45°，60°，-45°，-60°）的变化关系，并对数据进行了拟合，得出了相应的关联式。

The effect of the equivalent heattransfer coefficient between the bar and iron core on the distribution of temperature is also analyzed during starting.

分析了导条与铁心之间的等效换热系数的变化对电机起动温度场的影响。

The results show that: Liaodong Bay area of winter sea ice and temperatures have a significant negative correlation and the correlation of -0.815, by the regression equation between the two can forecast future trends in sea ice area.

结果表明：辽东湾冬季海冰面积与气温有着显著的负相关关系，相关系数为-0.815，通过二者之间的回归方程可预估未来海冰面积变化趋势。

Basic requirements of modern dry caigo ships such as deadweight, speed, restrictionto dimensions, and variable parameters such as block coefficient, dimension proportionsare analyzed.

本文对现代干货船的载重量、航速、主尺度限制等基本要求和方形系数、主尺度比值等变化参数进行了分析研究。

The effect of temperature on the friction and wear performances of multi-fibers reinforced automotive brake is investigated using XD-MSM tester. The mechanism of friction and wear is analyzed by observing the surfaces of friction material worn at different temperatures by means of scanning electron microscope.

利用XD-MSM型定速摩擦试验机，考察了摩擦材料的摩擦系数和磨损率随温度变化的情况，并且通过扫描电镜观察了摩擦材料在不同温度下磨损后的表面形貌，分析其摩擦磨损机理。

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。