查询词典 reflection grating

In order to investigate the relation of vertical resolution of seismic reflection with stratum structure and frequency of incidence wavelet, and the relation between the percentage of sandstone and the amplitude and wave impedance of seismic reflection in sand layers, two geological models are developed.

研究地震反射波垂向分辨率与地层结构及入射子波的频率关系和砂层组中砂岩百分比与地震反射波振幅、波阻抗之间的关系。

Hence, based on acoustic potential function and boundary condition on solid interface, we get reflection coefficient and refraction coefficient of longitudinal wave and transverse wave on solid-solid interface, and provide approximate formula of the reflection coefficient and the refraction coefficient about the first critical angle of incidence. We analyze relation between the refraction coefficient and acoustic impedance.

为此，基于固体介质的声势函数和界面的边界条件，推导了固-固界面纵横波的反射系数和透射系数，以及第一临界角入射情况下反射系数和透射系数的近似公式，并且分析了透射系数与声阻抗之间的关系。

The kernel point of the mountainous area high dip angle strata 3D seismic data processing is how to solve 3D reflection surface element divergence ,to increase reflection surface element trace gather inphase stack .

山地大倾角地层的三维地震资料处理的核心问题是如何解决3D反射面元发散，增加反射面元内道集同相叠加，而静校正技术和偏移成像技术正是解决这一问题的关键技术。

The 90 and 180 phase shift bits are of reflection type, using Lange coupler to realize the separation between the incident and reflection signals. According to process rules of the GaAs MMIC product line, we properly designed the circuit layout. In order to reduce the overall chip size, the transmission lines are folded with sufficient spacing to avoid interline coupling.

结合实际MMIC工艺线，合理设计移相器电路版图，折叠微带线并留出足够大的线间距，以避免线间寄生耦合的发生，并折叠兰格耦合器使90°和180°移相位的尺寸与其它相位的芯片尺寸保持一致。

By using the law of reflection,the equation of time distance curve of reflection wave under the continuous medium tilted interface,is discussed.

应用反射定律，讨论了连续介质斜界面下的反射波时距曲线方程，给出了这类模型下的成像方

In this paper, the analytical formulations for every reflection point's Z coordinate are deduced by using Fermat's principle and law of reflection in the system of cylinder and cone.

以圆柱和圆锥二阶系统的反射寻迹为例，结合费马原理和反射定律，推导出各反射点Z坐标的解析表达式，从而减少了寻迹方程中未知数个数，使计算时间显著缩短，也提高了结果精度，文中给出了应用实例。

Based on the law of reflection, using the rotation polygonal mirror and the second reflection mirror, the linear scanning of laser beam is realized by the novel scan system.

根据光线反射定律，提出了采用多面转镜和二次反射面相互配合来实现光束在屏上线性扫描的系统模型。

R4The working principle of convergence reflection type photo switch is similar to that of direct reflection type one, while its projector and light receiver focus on object distance, only when the object presents to the focus can the photo switch actuate.

R3 会聚型反射式convergence reflection type 会聚型反射式的光电开关的工作原理类似于直接反射式光电开关，然而其投光器与受光器聚焦于物距离，只有当物体出现在聚焦时，光电开关才有动作。

The effects of emulsions, pigments, conventional fillers, heat-insulation fillers and film thickness on the reflection and heat-insulation properties under infrared lamp are investigated in order to find the best materials for the heat-insulation coatings. It is found that both the titanium dioxide with high refractive index and the diatomite powder with micro pores possess the optimal reflection and heat-insulation properties, calcium carbonate also has sonic heat-insulation effect. However, the filler such as meerschaum, which in theory possesses the effect, has not shown heat-insulation function.

通过研究涂料配方中所用乳液、颜料、常规填料和隔热填料在红外灯下的反射、隔热和保温性能，发现高折射率的二氧化钛和含有微孔的硅藻土具有最佳的反射和隔热保温效果，轻质碳酸钙和重质碳酸钙具有一定的隔热保温作用，而理论上具有隔热保温效果的填料海泡石等并没有预期的效果。

The central part of each reflection is called the hub of reflection, such as the cardiovascular center, respiratory center, micturition center and so on.

控制某一反射的中枢分布在中枢神经系统不同部位，有低级与高级神经中枢之分。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。