查询词典 propagation

There should be the close relation between the stop of propagation and Doppler effect.

波动传播停驻与多普勒效应有密切的关系。

First, based on Huygens' principle, formulas for double refraction and internal double reflection with different directions of propagation vector and wave vector are given.

虽然对晶体的双折射效应已有大量的研究，但都只关注于单个界面上的双折射双反射，没有适用于多个界面的连续双折射双反射的情况。

The general formulation of double refraction or internal double reflection with different directions of propagation vector and wave vector in a uniaxial crystal is analyzed in terms of the Huygens principle.

并讨论了在晶体内沿多个面的连续双折射双反射，分析了前一界面输出量和后一界面输入量之间的联系，得到多次双折射双反射后的光线方向和光波法线方向。

The origin of travelling wave and its propagation characteristics of modal components in time-domain and frequency domain are analyzed. The characteristics of configuration of railway Automatic Blocking/Power Continuous Lines and principle of various methods of travelling wave fault location are studied. Using transient surges extracted by transform voltage on the lines, a new method of double-ended principle of fault location is proposed.

本文分析了故障暂态行波的产生机理和模分量在时域、频域的传播特性，研究了铁路自闭/贯通线路的结构特点以及目前各种故障测距原理，提出了利用线路侧电压互感器提取暂态行波双端故障测距的新方法，该方法能够精确地测量各种类型的故障距离。

Like all companies we are always looking what other crops are interesting to do business in. In the past we had a large farm in Brazil to grow Dracaena propagation material which we exported to Holland where we sold it to the market.

就如同其他企业，我们一直不断找寻发展其它作物的机会，过去我们在巴西有生产龙血树属植物幼苗的农场，出口回荷兰，再销售到市场上。

The dynamic propagation of Dugdale model on Mode Ⅲ crack with nonlinear characters of materials was investigated using the theory of complex functions.

通过复变函数论的方法，对材料的非线性特性下的Ⅲ型裂纹Dugdale模型的动态扩展问题进行研究。

Realized the limitation of current model, a general finite element model was proposed to determine the main crack propagation, local fracture of fiber and matrix and dynamic friction.

认识到了该模型的局限性，进一步给出了分别确定主裂纹扩展，局部纤维和基体破坏和滑动摩擦的有限元一般模型。

Effect of sand and dust storms on Ka-band electromagnetic wave propagation along earth-space paths.

沙尘暴对地空路径上Ka频段电波传播的影响。

In this study, we focused our attention on the establishment of rapid propagation system and the induction condition of the tube earthnut, and also the effect of 60Coγray irradiation on the growth of cultured seedlings of Radix Puer...

本实验对粉葛快速繁殖体系及试管块根的诱导条件进行了研究，并探索了~(60)Coγ射线辐照对粉葛组培苗生长发育的影响。

From these results,an effective procedure for mass propagation of virus-free tuberose by tip culture was established.

通过以上研究，对晚香玉建立了有效的茎尖培养脱毒苗的快繁体系。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。