mathematical constant是什么意思

网络释义

用法例句

The fitting and application of optical constants of infrared coating materials based on Lorentz oscillator model;

基于洛伦兹模型的红外薄膜材料光学常数拟合及应用

Determination of the optical constants of highly ordered porous anodic alumina film;

高度有序多孔阳极氧化铝薄膜光学常数的确定

The optical constants of GaN film investigated by spectroscopic ellipsometry;

GaN薄膜光学常数的椭圆偏振光谱研究

Determination of optical constants of thin films by means of transmission spectra and simulated annealing algoritm;

用透射光谱和模拟退火算法确定薄膜光学常数

Based on the explanation of the impact of the changes of optical property of aerosols on the global atmospheric environment, optical constants and parameters of different background stratospheric aerosols are computed.

本文简述了大气污染与气溶胶的关系,论述了平流层气溶胶对地球辐射收支的影响,从而说明平流层气溶胶的光学性质的变化将影响全球大气环境,在此基础上,计算了不同背景平流层气溶胶的光学常数和光学特性参数。

The ellipsometric spectra of the testing thin films were measured at either 50° or 70° incident angle under 300~1000nm wavelength range,upon which the thickness and the optical constants(refractive index and extinction coefficient) of the films were also obtained.

分别以50°和70°为入射角,测试了样品在300~1 000 nm波长的椭偏光谱,得到了其膜厚和光学常数谱(折射率和消光系数随波长变化谱),并应用Tauc作图法推算出了薄膜的光学带隙。

To activate mathematics education into daily life should not only link mathematics with life but also pay attention to the upgrade from everyday mathematics to school mathematics.

数学教育生活化不仅要密切数学与生活的联系,还要注重日常数学到学校数学的提升。

In this paper we show some formulas and its application methods which is useful as for we e-valuate the kinetic constants of chemical reaction in differentiation.

根据系统物理性质与物质浓度之间的关系式，推导出用微分法确定化学反应动力学常数的一般公式，并举例介绍了公式的使用方法。

The order of the kinetic constants Vmax of bacteria, actinomycete, fungi generating urease in paddy fields of red soil is fungi, bacteria and acrinomycete, while rhe order of km is bacteria,fungi and actinomycele.

红壤稻田细菌、放线菌和真菌产脲酶的动力学常数Vmax为真菌>细菌>放线菌,Km值则细菌>真菌>放线菌。

According to the mechanism that the activity of plant-esterase can be inhibited by organophosphorus pesticides, the kinetic constants(k_i,k_d,k_p) and the concentration of inhibitor producing half-inhibition of enzyme activity(IC_(50)) of plant-esterase inhibited by the racemate and enantiomers of malaoxon,isomalathion,and methamidophos were investigated.

利用植物酯酶活性可被有机磷农药所抑制的毒理机制,测定马拉氧磷、异马拉硫磷、甲胺磷及其对映体抑制植物酯酶的动力学常数(k_i、K_d、k_p)和半抑制浓度(IC_(50)),为探索植物酯酶抑制法的动力学作用机理提供对映体层面的数据支持。

Gives the number 3.14159..., an approximation of the mathematical constant pi.

给出数学常数π的近似值，即数字3.14159...。

HubBle constant

哈勃常数(天文学)

(math) a progression in which each term is multiplied by a constant in order to obtain the next term.

（数学）下一项数等于前一项数乘以一常量的级数。

(math) a progression in which a constant is added to each term in order to obtain the next term.

（数学）下一项数等于前一项数加一常量的级数。

Our maths classes are pretty deadly.

我们的数学课非常枯燥。

The math exam was a clay pigeon.

数学考试非常容易。

a mathematical expression consisting of the constant e raised to some power.

把常数升高到特定的幂的数学表达式。

(mathematics) can be divided usually without leaving a remainder.

（数学）能够被除尽，通常是没有余数的。

The Mathematical Expressions and Applications of Euler s Constant;

Euler常数的数学表示及其应用

On the Mode of Mathematical Thinking Often Used in Mathematics Teaching;

试论数学问题教学中常用的数学思维方式

Mathematics is the Precision of Common Sense and Mathematics Teaching;

利用数学是常识的精微化指导数学教与学

common fraction

ph.1. 【数】普通分数常分数

(5)Constant storage.

(5) 常数存储。

I usually study math [in company with] a group.

我通常是和小组一起学习数学的.

She usually learns English and Maths.

她平常都学习英语和数学。

Examing the speed constant of the chemical reaction with the experiment of the mini chemical method;

微型化学实验测定化学反应速度常数

Optimizing Maths Teaching in Class by Means of Electronic Media;

运用常规电教媒体　优化数学课堂教学

The System of the Resolution to the Parameters of Electrochemical Impedance Spectrum with Multi-time Constant;

多个时间常数电化学阻抗谱的参数解析系统