查询词典 constant value

After 180 minutes electrodialysis without aerating when electric current is constant, the value of R of these two kinds of membrane were 4.95×10^(-7) molml^(-1)cm^(-2), 3.76×10^(-6) molml^(-1)cm^(-2) respectively.

在恒流条件下，不曝气时电渗析的效果反而好，180min时，曝气和不曝气条件下疏水氟膜的R值分别为3.24×10^(-6)molml^(-1)cm^(-2)和3.76×10^(-6)molml^(-1)cm^(-2)。

Well, the α ratio works similarly: if emitter current is held constant, collector current will remain at a stable, regulated value so long as the transistor has enough collector-to-emitter voltage drop to maintain it in its active mode.

系数α的作用与之类似：如果发射极电流保持恒定，只要集电极－发射极电压足以使其保持在放大区，集电极电流也将稳定保持。

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。

The expm1 function returns the value of Ex-1, where E is Euler's constant (approximately 2.7183) and x is the number passed to it.

expm1函数的作用是：计算 e（自然对数的底，其数值大约等于2.7183）的指数；它返回了exp 1的值，甚至当number的值接近零也能计算出准确结果。

In the last chap-ter,the natural integral equation and natural boundary element method forharmonic problem on exterior elliptic domain are introduced.Then,based onthis,the natural boundary reduction method for a kind of exterior problem ofanisotropic constant coefficients elliptic equation is discussed, the natural inte-gral equation and its solving method on circular boundary and elliptic bound-ary are obtained.These results can be directly applied in coupled methodand DDM for exterior boundary value problem.

最后，讨论了椭圆外区域调和问题的自然积分算子即D-N算子及自然边界元方法，并基于此研究了一类各向异性常系数椭圆型方程外问题的自然边界归化方法，首次得到其在圆周边界及椭圆边界上的自然积分方程及其求解方法，并将这些结果直接应用于外边值问题的耦合算法。

Presents the study of second order linear constant coefficient progressive regression equation with the latest achievements in the "greatest common divisor" theory to give the great significance of Fibonacci combination series equation, Fermat Number , and Mersenne Number, and a only exceptional value each.

用"最大公约数"理论的最新结果，研究二阶线性常系数齐次递归方程，给出斐波那契数列组合式、费马数、梅森数在组合数学上的重要意义和它各自有一个且唯一例外

With the continuous expansion of data sources and constant improvement of functional module, AEDIS will have greater application and promoted value.

随着数据源的不断扩充和功能模块的不断完善，AEDIS将具有更大的应用和推广价值。

By the end of 1999, the international committee CODATA, decided to officially increase the uncertainty of the accepted value for the gravitational constant from 128 ppm to 1500 ppm.

在1999年底，国际委员会 CODATA 决定正式把万有引力常数 G 的误差范围由0.0128%提高到0.15%。

Dividing this value by the gravitational constant, g , where g=9.81 m/sec 2 , gives the conventional units of "seconds".

除以这个值由万有引力常数，克，克= 9.81米/秒2 ，给传统的单位"秒"。

In 1976, the International Astronomical Union revised the definition of the AU for greater precision, defining it as that length for which the Gaussian gravitational constant takes the value 0.01720209895 when the units of measurement are the astronomical units of length, mass and time.

但实际上地球绕日的轨道不是一个圆形，而是一个椭圆形：最初天文单位的定义就是上述椭圆的半长轴的长度。1976年，国际天文学联会把一天文单位定义为一颗质量可忽略、公转轨道不受干扰而且公转周期为365.2568983日的粒子与一个质量相等约一个太阳的物体的距离。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。