查询词典 constructive mathematics

The fundamental principles underlying the concept of electronic beam steering are derived from electromagnetic radiation theory employing constructive and destructive interference.

电子波束控制的基本原理来自于电磁场理论的相干作用。

Destructive interference hasbeen extensively studied both theoretically and experimentally,whereas only a fewstudies have been carried out for constructive interference.

目前，人们已从理论和实验上对相干相消进行了大量的研究，而相干相长的研究却很少。

This article intends to explore the hot issues in national and international emotional theories and national suicide crisis interference so as to produce some constructive advice on suicide interference in colleges and universities.

本文通过对国内外情绪理论、国内外危机干预现状等热点问题的探讨，为高校自杀危机干预提供一点有益的建议。

Because different colors have different wavelengths, the interference may be constructive for some colors and destructive for others; hence the appearance of colored rings or fringes.

因为不同的颜色具有不同的波长，对有些光可能是干涉加强的对另一些有可能是减弱的，因而形成了彩色的圈或是条纹。

Since these two electric fields must be in phase at point P for constructive interference to occur, the arguments of the sine functions must be equal.

由于两个电场在P点必须同相以获得相干，这两个正弦函数必须相等。

In order to achieve this constructive interference at Point P, the energy arriving from all radiating sources must be in phase and arrive at the same time.

为了到达P点时能够相干，从各单元辐射的能量必须同时同相到达。

The constructive or destructive spectral interference between the molecular groups oriented up and down at the interface in the Sum-Frequency Generation spectra provides a direct measurement of the absolute orientation of these molecular groups.

和频振动光谱研究中由基团在界面上取向所引起的光谱增强或相消的干涉现象为研究分子在界面上的绝对取向提供了一种直接的测量方法。

The coherence and constructive interference with a widely-separated doublet viacollision-aided radiative excitation in an open four-level system is studied with thedensity matrix approach for the first time.

运用半经典理论首次研究了一个开放四能级系统中基于碰撞感应激发而产生的间距较大双能级间的相干及量子干涉效应。

In this thesis,we try to theoretically and experimentally investigate quantuminterference in atomic multi-level system and atom-molecule hybrid system to findthe conditions for generating quantum interference,the constructive or destructivefeature of interference,and the dependence of quantum interference on theenvironmental conditions.

本文旨在从理论和实验两方面对以往较少涉及的原子及原子—分子混合体系中多能级系统量子干涉效应进行研究，并着重探索量子干涉产生的条件、干涉相长或相消特性及其对外界条件的依赖关系等。

The competition between constructive interference and stimulated electronicRaman scattering via equal-frequency hybrid excitation in a Na2-Na system isexperimentally observed for the first time.

在基于等频混合激发而产生受激电子喇曼散射的实验中，首次观察到相干相长与受激电子喇曼散射之间的竞争效应。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。