When the offset distance is smaller on the wellhead, the layer velocity obtained with straight line and the refraction line is matched with that of actual formation velocity.
当井口偏移距较小时，直线法和折线法求取的层速度和地层真速度吻合；
Rapidly changing refraction due to turbulence along the line of sight affects different colors of light by different amounts and generally produces a twinkling effect for stars.
由于湍流而快速变化的折射在视线中会影响到光的不同颜色，这种影响也各不相同，一般会给恒星产生一种闪烁的效果。
Based on the analysis of present methods for atmospheric refraction correction, a new correction model is put forward based on the refraction Angle of the line of sight.
本文在分析现有水准折光改正方法的基础上，导出了一种基于水准视线折光角的改正模型。
The paper is to prove the refraction on two kinds of medium interfaces of electric displacement line using the boundary condition of the electric field and Fermat Principle.
利用电场边界条件和费马原理证明电位移线在两种介质界面上的折射。
This paper is the second part, which presents the characteristic of reflection and refraction coefficient spectrum at line boundary.
本文是第二部分，主要探讨了两类母线的接线情况下，线路边界的折、反射系数的频谱特征。
Through the methods of reflection refraction and accumulation the light could be well-proportioned to be the best way of transmission from light-line to light face.
通过对光的反射、折射和累加达到均匀的平面发光效果，用最快捷的办法实现线光源到面光源的转变。
This paper, based on the straight-line transmitting law and refraction law of light, analysed the conditions that the image of object in water will be clearly observed.
本文根据光的直线传波规律和折射定律，分析了观察水中物体成清晰像的条件。
The optical reflection points or the optical line refraction points, or the laser breakdown points are produced by a laser engraving machine based on selected pictures.
光线反射点、或者光线折 射点、或者激光破坏点由激光雕刻机根据选定的图像产生。
The influence of the side-refraction in desert regions on the absolute terms of the azimuth conditions and base-line conditions of triangulation chains is expressed as systematic errors.
沙漠地区旁折光对三角锁系的方位角条件及基线条件常数项的影响表现为系统性误差。
The transparent platy member and the inserting piece are arranged with a plurality of optical line reflection points, or optical line refraction points, or laser breakdown points.
透明板状构件和插片中设置有复数个光线反射点、或者光线折射点、或者激光破坏点。
The transparent platy member and the inserting piece are arranged with a plurality of optical line reflection points, or optical line refraction points, or laser breakdown points.
透明板状构件和插片中设置有复数个光线反射点、或者光线折射点、或者激光破坏点。
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