查询词典 numerical constant

The experimental model of the soil dielectric constant is given and the numerical results of the parameters in the model are obtained.

利用RBF人工神经网络和遗传算法实现了地面参数反演，得到了较小的反演误差，获得了较好的结果，并对这两种方法的优缺点进行了比较。

According to the theory of flow diffusion and convection, three-dimensional state equation of radon field is established for constant and variable diffusion coefficient and convection rate. The numerical solutions for different coefficient and different boundary conditions are obtained for two models of radon field which have respectively source in the side and inside of collapse column.

根据流体场的扩散理论和对流理论，建立了扩散系数与对流速度为常量或变量情况下的氡气场三维状态方程；对於陷落柱柱体侧面有源氡气场和柱体体内有源氡气场两种理论模型，给出了不同系数和边界条件下的数值解的形式。

The dimension and numerical value of the constant and of equilibrium of chemical reaction are explored from different perspective of college chemistry.

从大学化学的不同角度探讨了化学反应平衡常数Kp和Kop的量纲和数值，增强了对大学无机化学教材和中学化学教材中对该类问题的理解。

This paper adopts function generation method to decompose tooth-layer permeance with the numerical calculation to constant component and harmonic component.

这为采用解析方法计算直线步进电动机的性能以及直线步进电动机的优化设计提供了依据。

A quick and correct forecast of tidal current when oil spill occurs is a key step in the forecast of oil spill. Based on the harmonic constant of tidal component of M2, S2, O1 and K1 in Lingshan Island, Laoshantou and Chaolian Island, and by using harmonic method, the thesis first conducts a current forecast in a single point, and then builds up a current field forecast in Jiaozhou Bay and its adjacent seas. The computed results match well with the actual situation. The method reduces greatly the time of real time current forecast by not using numerical stimulation, so it fit to the two requirements of quickness and correctness in oil spill forecast system.

迅速准确地预测出溢油发生时的潮流情况是溢油环境预测的根本保证，因此文中根据灵山岛、崂山头和朝连岛三处M2、S2，、O1和K1四个主要分潮的调和常数资料，采用调和的方法进行单点的潮流预报，进而建立了胶州湾及邻近海域的预报潮流场；该方法的潮流预报结果与实际情况吻合良好，且因避开了数值计算过程而大大减少了流场实时预报的机时，符合溢油应急预报系统所要求的准确与快速。

The numerical calculation results indicate that, when the transitional process has finished, the temperature rising speed of inwall and outerwall is almost a constant, and the temperature difference of inwall and outerwall keeps invariably during laser irradiation.

利用有限元法对金属球壳在恒定功率密度激光辐照下的热效应进行了数值计算，分析了在激光辐照过程中，金属球壳内外壁的温升、温差的变化规律，并主要以铜、铝材料为例，比较了铜、铝球壳在激光辐照下的温度变化和外壁温度响应情况。

The numerical results show that in the matrix of mixing matrix chiral physical change in dielectric constant and magnetic permeability, which have an impact on the reflection coefficient.

数值计算结果表明，在基质中掺加手征体能改变基质的介电常数和磁导率，从而对反射系数产生影响。

We see that there is no numerical value of the real constant.

我们可见实常数没有数值。

The article introduces a design method of numerical precision constant current source based on high-power operational amplifier .

介绍了一种在大功率运放 OPA549基础上的数控精密恒流源设计方法。

A quantity which has a fixed numerical value is called a constant.

1\一个量它有固定的数值，这个量叫作常量。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。