查询词典 proportionality coefficient

The reaction kinetics was studied by selecting control-step method as well as modified Debye-Hückel activity coefficient model and Bromley osmotic coefficient model. The results show that the reaction order is 2 and apparent reaction activation energy 85.8 kJ/mol, and the reaction is mainly controlled by precipitation of KB5O8?4H2O.

采用选取控制步骤法并引入修正的Debye-Hückel活度系数模型和Bromley渗透系数模型研究了该反应的动力学的影响规律，得出反应级数为2，表观反应活化能为85.8 kJ/mol，反应主要受四水五硼酸钾晶体析出的控制。

In this thesis, Water Solubility, 1-Octanol/water Partition Coefficient, molecular Total Surface Area, Aqueous Activity Coefficient, Henry Law's Constant and gas chromatogram relative retention times for biphenyl and its 209 chlorinated congeners were studies with holographic QSAR techniques and highly predictive QSAR models were developed. An internal validation (cross-validation) and external validation were performed to evaluate the predictivity and robustness of the HQSAR models. Based on these highly predictive QSARs, the corresponding data of 5 properties of all these pollutants were presented.

应用简化的响应曲面分析来建立显著的预测模型，必须要考虑到空间立体因素的影响；基于分子模拟技术的三维QSAR技术能够建立显著的预测模型，并且有利于对毒性机理的理解；而基于分子全息的QSAR技术建立了具有高度预测能力的QSAR模型，组内交叉验证和组外预测等方法证明模型具有高度的预测能力和稳健性，可以对硝基芳烃这一类分子结构、体内代谢过程和致毒机理都很复杂的污染物进行定量预测。

A modified etching model is proposed, in which the diffusion coefficient is a function of the temperature and concentration and the etching rate constant is a function of temperature.

在前人腐蚀模型基础上考虑扩散系数是浓度和温度的函数，腐蚀速率常数是温度的函数，得到了修正模型。

A CO2 laser was employed to ablate water droplets provided by a pulsed liquid propellant feeding system. Experimental results indicate that momentum coupling coefficient C is increased to 50×10^(-5)N?

在成功研制液体工质注入系统的基础上，以脉冲式CO2激光器为光源，将雾化水滴用作工质，进行了激光推进性能实验测试研究。

Thirdly,in virtue of Markov theory,we get the herd coefficient matrix from Markov change probability matrix and construct the CA-Markov composite Model and get some characteristics of the CA-Markov composite Model Finally,we do simulations and sort for Xinjian County by using the Markov Model and the CA-Markov composite Model, respectively and analyze and compare the simulation results abortively.

然后，借鉴马尔科夫理论，采用转移概率矩阵估计从众系数矩阵，构建出CA-Markov复合模型，并研究了相关的性质。

Distinctive characteristics of this material include high impact and abrasion resistance, and a low coefficient of friction.

这种材料的特性包括高抗冲击和耐磨损性能，及低摩擦系数。

Experimental accuracy and repetition of FBG temperature sensitivity and compensation were discussed.have selected several materials which has bigger coefficient of expansion to do packaging components, have made many temperature experiments, there have not flaws, such as aging, crackle, absciss layer, packaging materials have good temperature sensitivity and compatibility with optical fiber;have designed the simple and practical packaging components, have performed a serials of experiments about accuracy and repetition of FBG wave-length, have obtained the first step conclusion;have analyzed the result and made comparison between the result of different experiment, have summarized the best packaging effect and several rules to reduce mistskes.

本文所做的主要工作包括以下几个内容：一、选取了常见的热膨胀系数大的材料制作封装元件，经过多次一80℃到80℃反复测试，封装元件没有出现老化开裂、封装裂纹、空洞、离层等缺陷，封装材料具有良好的温敏稳定性及复用性，与光纤相容性较好；二、对光纤光栅进行简单、实用的封装处理，就封装效果的优劣性、波长测量的准确度、重复性和封装时产生的波长损失等方面进行了一系列的实验，得出了初步的结论；三、对温敏和温度补偿式封装的实验数据进行了详细的分析和对比，从数字上对温变过程中光纤光栅中心波长的改变及温变曲线进行了定量的分析，在大量实验数据分析结果的基础上，总结出哪种材料封装效果更好，以及如何有效的减小实验误差。

For the 592 chemicals, the coefficient of determination of the regression model was as high as 0.9696 with a mean absolute error of 0.37 log-unit.

对所有592种化合物而言，模型的可决系数高达0.9696。估算结果的平均绝对误差仅为0.37个对数单位。

Its principle is that if absolute value of parent coefficient in coarse layer are larger magnitude, absolute value of son coefficients axe possibly larger. Therefore, it presents edge more possibly.

在不同层间，如果低分辨率下的父系数绝对值大，则在高分辨率下四个相应的子系数的绝对值可能性也大，则其所代表地图像边缘信息可能性越大。

based on the analysis of regressing the experimental dada show: diffusion coefficient decreases as the increasing of absolute pressure in linear; increases in a way of logarithm with the varying rate of pressure.

对试验数据回归分析表明：木材水分扩散系数随绝对压力的增加呈线性减小；随压力变化速率的增加呈对数曲线增大。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。