查询词典 constants

There are four basic constants in natural units system: Planck constant , speed of light in the vacuum c, the quality of any particle and electron's electric quantity e. Other units can be educed by the four basic units.

自然单位制有四个基本常数：普朗克常数、真空中的光速c、任意粒子的质量和电子的电量e，其它单位都可以由这四个基本单位导出来。

Consequently, there exists no difference between the propagation constants of these waves, the rotation of plane of polarization is absent when a linearly polarize...

我们得出结论：这种波导可用来制作极化不灵敏移相器；而文献〔3、7〕中的结果(在这种波导中，右旋和左旋圆极化波的传播常数不相等；当线极化波通过它时出现极化面的旋转)是有问题的。

Both the methods for measuring such optical constants as cleavage angle, interference color level, extinction angle, length sign, optical sign, optic angle, pleochroism formula, absorptivity formula and the determining program for transparent minerals will be emphasized to lecture.

重点讲授透明矿物解理夹角、消光角、延性符号、干涉色级序、光性符号、光轴角、多色性公式、吸收性公式的测定方法和透明矿物的鉴定程序。

Where A and B are material constants,I 1 ,I 2 ,and I 3 are mean strain invariants,and n is Poisson's ratio.

其中A和B是材料常数，我一，我2，我3是平均应变不变量，而n是泊松比。

We determined the stability constants of complexes between zinc ion and several proteins of macromolecules and macromolecular weights by polarography.

本文采用常规极谱法测定了锌离子与几种蛋白质等大分手的配合物生成常数及大分子的分子量。

All isotropic constants of regular polyhedron in a three dimensional space are given in this paper. The result shows that the guess is right in a three dimensional space.

给出了在三维空间中全部正多面体的迷向常数的数值，从而说明这一猜测对三维空间中的正多面体是正确的。

In the first part, we report the application of a set of parallel dual tweezers, one stationary and one movable, to trap a polystyrene bead (suspended in de-ionized water) and drag it away from one of the trap centers beyond the linear (Hooke's spring) regime, to probe the nonlinear optical force constants associate with the optical trap.

在第一部分，我们建立了一个包含一道不动雷射光与一道可动雷射光的平行双道光钳，由此光钳钳住并移动悬浮於去离子水中的聚苯乙烯小球，使小球与其中一道光钳中心的距离远超出光钳的线性范围，来探讨光钳的非线性效应。

Potassium silver cyanide and potassium gold cyanide, which stability constants are very large, were used as the starting materials for the preparation of silver and gold powders. Adjusting the concentration ratio of protective agent to reducing agent and other reaction conditions can control the size, shape and morphology of precious metals nanoparticles.

使用氰化亚金钾和氰化银钾等稳定常数很大的金和银配合物作为制备纳米金粉和银粉的前驱体，控制保护剂／还原剂的比例以及其它反应条件，可以有效地控制粒子的大小、形状以及粒子聚集体的形貌。

So-called first-order theorem proving may be restricted to a propositional calculus with terms (constants, function names, and free variables) added, making it impossible to express mathematical induction.

所谓一阶定理证明可限于命题演算的条款（常数，函数名，并免费变量）说，无法表达数学归纳法。

Chemometric method were used to analyze UV spectrum of TCAS-heavy metal complex, pure UV spectrum of TCAS-heavy metal complex and TCAS-heavy metal complex distribution curves toward concentration of heavy metals in solution were gained. Finally, complex constants of TCAS towards Cu, Zn, Cd and Pb were got to be 9.79、8.72、6.87 and 5.00, respectively.

采用化学计量学分析TCAS络合重金属的紫外光谱，获得了TCAS－重金属络合物的纯紫外光谱，以及TCAS、TCAS－重金属络合物随重金属浓度变化的分布曲线，并最终解析得到TCAS与Cu、Zn、Cd和Pb的络合常数分别为9.79、8.72、6.87和5.00。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。