查询词典 snell

This method is based on the Snell law of acoustic propagation in water. Different velocity gradients among linear layers in water are utilized to draw the sound ray chart, and a mathematical model of the geometric operational range is built. Furthermore, the geometric homing range is predicted with sound ray density, a prediction system of geometric operational range for acoustic homing torpedo is designed and the function of the system is realized through a system software. The sea trial demonstrates the prediction validity of the system.

该方法基于声波在水中传播的Snell定律，利用水中各线性分层间不同的声速梯度，绘制声线图，建立了几何自导作用距离的数学模型，并通过声线密度对几何作用距离进行预报，设计了声自导鱼雷几何作用距离预报系统，并通过系统软件实现了其功能，经测试，该系统在海上试验中取得了良好效果。

Descartes had either learned the sine law of refraction from Willebrord Snell (Snell's Law) [6] or had discovered it independently, and this allowed him to quantify spherical aberration.

笛卡儿要么据悉，正弦规律的折射，从willebrord snell [ 6 ]或发现了它独立，这使他能够量化球面像差。

The law of refraction, discovered first empirically by Willebrord SNELL, then subsequently derived formally by Descartes and Fermat, states that sin r = K sin i, where i is called the angle of incidence, the angle between the incident ray and the normal to the refracting surface.

折射的轨律，首先被 Willebrord SNELL 靠经验发现，接着后来正式被笛卡尔和 Fermat 认定，规定 sin r = K sin i ，这里 i 被称作入射角，入射光线和法线到折射平面之间的夹角。

The reflection coefficient and refraction coefficient are also given; the analysis shows the versatility of the principle of least action ,Snell s law and Fresnell s law in the research on the left-handed material,and the negative refraction effect is explained.

研究了电磁波在左右手介质界面折射与反射的特性，给出了折射系数和反射系数，从另外一个方面探讨了最小作用量原理在左手材料中的适用性；从电动力学和最小作用量原理证明了Snell定律，验证了Snell定律在左手材料中的适用性，并且得到Fresnell公式在左右手材料中的一致性。

A simplified theoretical analysis of the evanescent wave phenomenon was presented based on The Snell's Law.

运用Snell定律的波动形式解释了光在介质中传播时的消逝波现象，并探讨了提高消逝波光纤生物传感器分析灵敏度的方法。

As all above, results shown in this work will help to understand the fundamental principle of optics both in theory and experiment based on Snell\'s law.

因此，本研究工作中所获得的结果将增加人们对经典物理光学中最基本定律的认识和理解，无论是在理论还是应用上都有着现实的意义，能促使人们更好地认识基于Snell定律的电磁波在物质中的传播规律。

In terms of the study of the most fundamental and interesting problem in optics, the result given in this work has the practical and significant meaning to help people understand more about the Snell\'s law based on the phenomena of the light transmitting through the interface consisting of two different media in wider physical conditions.

本研究工作涉及到对经典物理光学中最基本定律的认识和理解，无论是在理论还是应用上都有着很多现实意义，能促使人们更好的认识基于Snell定律的电磁波在物质中的传播规律。

Snell's law reveals the propagation and refraction properties of the light when it passes through the interface composed by two media with different optical constants.

Snell定律揭示了光在穿越不同介质界面时的传播和折射规律，这是现代物理光学的重要基础。

Based on Snell's law, an approach for calculation firstarrival travel times in a transverse isotropic media is developed, of which result can be used as the imaging condition of reverse time migration.

从snell定理出发，采用插值法求取网格空间中各点的直达波旅行时，以此作为弹性波逆时偏移的成像条件，实现多波多分量资料的逆时偏移。

However, the refraction of plane wave in reaction-diffusion system obeys Snell's law only for proper diffusion coefficients and system parameters.

在二维复金兹堡-朗道方程描述的反应扩散振荡系统中，就扩散对平面波折射率的影响进行了数值研究，从Snell定律出发导出了折射率的解析表达式，数值和理论结果表明：在纯扩散情况下，平面波的折射满足Snell折射定律，扩散只影响着平面波折射率的大小；在同时存在反应扩散情况下，只有在适当的扩散系数和系统参数下，平面波的折射才满足Snell折射定律。

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。