其优点在于光束质量好、可以任意改变光束的出射方向和位置。
Its advantage is that the light beam quality is good, the light beam emitting direction and position can be changed optionally.
本文应用几何绕射理论（GTD）计算了弹载天线的辐射方向图。
The pattern of an antenna in missile is calculated by using GTD method.
为了提高增益和方向性，把四个平板端射天线单元在端射方向上排列。
To improve the directivity and gain, the four units of plate end-fire antennas are arranged in the direction of end-fire.
把传统的集合侧向流横向分析拓展到了纵向，建立了在末态粒子倾向性出射方向上对侧向流作定量分析的方法。
The traditional transverse analysis of the collective sideward flow is ex-tended to study the flow in longitudinal direction.
于是，它们呈放射状移动——从巢穴向所有可能的方向迁移——像国庆焰火似的四射开来。
So they migrate radially—in all possible directions away from the den—like starburst embers from a Fourth of July rocket.
从景区往山项方向走1公里，绿树丛中出现几幢楼房，这便是宁波广播电视发射中心发射三台，也叫712发射台。
From a mountain scenic spot to direction 1 km, green trees appear a few building, this is ningbo radio and TV launch centre three sets, also called 712 launch pad.
这次他低射打进了右下角，米堡门将杰森。斯蒂尔扑错了方向。
This time he tucked the ball low into the bottom right-hand corner as Boro keeper Jason Steele moved in the opposite direction.
为了克服这一困难，本文通过引进一个仿射变换矩阵，构造仿射投影既约预条件共轭梯度路径来搜索获得迭代方向。
In order to overcome the difficulties, we introduce an affine scaling matrix, and form the affine scaling reduced preconditional conjugate gradient path to obtain a new accepted step.
四极子量子级联微腔激光器带来的光的方向性激射，解决了对称型微腔激光器光的方向性激射的困难。
Directional emission of light guided by quadrupolar-shaped quantum cascade microcavity lasers solves the difficulty about the directional emission of symmetrical microcavity lasers.
亚微米光栅型导光板通过光栅空频控制出射光方向、控制槽深调节衍射效率，达到导光板出射光强的均匀性。
The transmission angle is controlled by grating frequency and the diffraction efficiency is controlled by groove depth of sub-micro gratings to get uniformity of transmission filed.
在斜轴测的图解法中，用仿射变换作椭圆的主方向和主半径大小。
In the graphical method of the oblique axonometry, the affine transformation is taken as the ellipse's principal direction and the size of the principal radius.
结果表明，这种新型LED在竖直方向的出射光强比不带微结构的LED有明显增强。
As a result, the vertical extractive light intensity from the novel LED was obviously stronger than that of the LED without microstructures.
本文简要地介绍了曲面及直劈几何绕射理论(GTD)在计算天线方向性中的应用。
In this Paper, a summary of Geometrical Theory of Diffraction (GTD) by a curved surface and a straight wedge, and its application to calculation of antenna pattern is given.
采用口径场绕射积分求取了天线的近场及远场方向图，绘制了波束宽度、方向性和最大副瓣电平三个关键参数随场点距离的关系曲线。
Three key parameters, namely beamwidth, directivity and maximum sidelobe level, are drawn versus the distance between field points and the center of aperture.
这点在观测点位于垂直绕射楔或断层的方向上也是同样真实。
This point is also true in case the observation is along the direction perpendicular to the wedge or fault.
只是为了杀一只猴子就需要一齐追射，许多人从各个方向袭击猴子。
Just to kill a monkey a concerted attack is needed, many men attacking the monkey from all sides.
该文检测器件集射极电压确定输出电流方向，并据此实现四步换流。
In this design, the collector-to-emitter voltage is sensed to determine the directions of the output currents for the 4-step commutation strategy.
研究表明，所制备的体散射导光板样品的出射光主要分布在偏离出光面法线一定角度的方向上，具有良好的光学均匀度。
The results show that the output light mainly distributes in deviation from the normal of LGP at certain angle direction and a good uniformity of intensity can be achieved.
根据实测的单元天线方向图，利用几何绕射理论，给出了金属截锥柱侧天线三维辐射场的一种有效的数值分析方法。
On the basis of the experimental element pattern and GTD, an efficient numerical method for analyzing 3-D radiation field of antennas on the truncated cone-cylinder is presented.
根据实测的单元天线方向图，利用几何绕射理论，给出了金属截锥柱侧天线三维辐射场的一种有效的数值分析方法。
On the basis of the experimental element pattern and GTD, an efficient numerical method for analyzing 3-D radiation field of antennas on the truncated cone-cylinder is presented.
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