查询词典 geometric

Classical optics divides into two main branches: geometric optics and

经典光学可以分成两个主要分支：几何光学与

This paper provides an overview of status about laser beam shaping at home and abroad. The theory of beam shaping transformation, including geometric optics and matrix optics, is presented.

本文综述了国内外对于半导体激光束整形技术的研究现状，阐述了研究光束整形变换的理论方法，主要包括几何光学、矩阵光学。

Fiber with large core diameter (greater than 10 micrometers) may be analyzed by geometric optics.

更简单地说，有一个最大角从纤维轴在轻可进入纤维，从而使它宣传，或旅行，在核心的纤维。

To instruct the students knowledge about geometric optics.

教学目标： 1。教导学生几何光学之基本原理及专业知识。

Under the assumptions of geometric optics and thin phase screen the retrieval algorithms of amplitude in GPS/LEO occultation technique were listed in this paper, respectively.

本文在几何光学和薄相位屏的假设下，分别介绍GPS/LEO无线电掩星反演地球大气技术中振幅反演的计算方法。

Fiber with a core diameter less than about ten times the wavelength of the propagating light cannot be modeled using geometric optics.

光纤与核心直径小于10倍左右波长的光线不能用几何光学模型。

Gaussian beam propagation thus bridges the gap between geometric and physical optics.

高斯光束传播理论因此可以沟通几何光学与物理光学。

The structure function of residual wavefront phase perturbation compensated by an adaptive optics system has been derived by means of frozen turbulence hypothesis and geometric optics approach.

在采用冻结湍流假设和几何光学近似的条件下，得到了经自适应光学系统校正后的剩余波前相位扰动的结构函数。

The analyses based on geometric optics indicate that the vibration of the mirror will lead to a beam-excursion and a focal departure.

结合瑞利后向散射激光信标系统的时间选通需要，设计了高速转镜的工作时序和相应的镜面结构。

In this paper, the Fresnel transform and the Geometric Optics inversion method are analyzed and compared. The limitations of the theories of these methods are analyzed.

文章研究了菲涅耳及几何光学方法的反演原理，利用GPS/MET数据分别反演得到了大气折射率及温度廓线。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。