查询词典 snell

This is a special case of Snell's law.

反射定律：在均匀介质中，同一波的反射角等于入射角。

In addition, Snell's law is applied, and traveltimes of waves from neighboring nodes are considered at the same time to determine the effective propagation area of the current secondary source.

在子波传播的计算上，利用斯奈尔定律，同时参考来自邻近节点的波的走时，来限定当前子波传播的有效区域，排除大量不需要计算的子波传播方向。

Usually called Snell's law.

通常也称为斯奈尔定律。

In addition, Snell's law is applied, and traveltimes of waves from neighboring nodes are considered at the same time to determine the effective propagation area of the current secondary source. Thus, many unnecessary propagation directions are excluded.

在子波传播的计算上，利用斯奈尔定律，同时参考来自邻近节点的波的走时，来限定当前子波传播的有效区域，排除大量不需要计算的子波传播方向。

In this work, firstly, we give a historic survey of the optical principle based on Snell\'s law which was discovered more than three hundred years ago.

这触及到对核心光学原理的深刻认识和修改，以及所伴随产生的一系列与传统光学原理和规律尖锐冲突的问题，并延伸研究到很多方面，如负折射、人工材料、光子晶体、表面等离子体等，都成为近年来最热门的前沿研究课题，大量理论和实验结果发表在Nature，Science和PhysicalReview Letter等国际核心期刊上，促使世界范围内的研究小组通过各种不同的实验方法和理论模拟，积极探索这些感兴趣的核心问题。

Snell's law follows from Fermat's principle.

斯奈尔定律遵从费马原理。

That is, movement adds only a fraction of the medium's velocity to the light (predicted by Fresnel in order to make Snell's law work in all frames of reference, consistent with stellar aberration).

即运动增添仅为介质的速度轻(预言菲涅尔为了使斯涅耳定律在各项工作的参照系，符合恒星像差)。

With the expression for the light propagation, the corresponding Snell's law and the expression of Fresnel coefficients are obtained, which can be applied to describe the re°ection-refraction event at the interface between an arbitrary combination of transparent and absorbing media.

并由此得到吸收介质界面上的反射和折射定律及其菲涅耳公式，所得结果也适用于由吸收和非吸收介质任意组合的界面。标签菲涅耳公式反射折射吸收折射率

Ray tracing: Determining the arrival time at detector locations by following raypaths which obey Snell's law through a model for which the velocity distribution is known.

射线追踪：通过追踪服从斯奈尔定律的射线穿过速度分布已知的模型，进而来测定其到达检波器位置所需的时间。

Then,shotpoint-receiver pairs which meet reflec-tion law are found by using Snell's law. Finally,prestack depth imaging is achievedby using constraint weighted Kirchhoff integral. This method is adaptable to thevertical and lateral variation...

本方法适应速度的纵向和横向变化，它优于简单的VSP－CDP资料转换成像方法，通过模型和实际资料的成像应用表明，此法不仅成像精度高，而且有利于改善剖面的频率特性。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。