Over those distances, even a sharp laser beam would spread to thousands of kilometres wide by the time it reached Earth.
在这种距离下，即便是聚焦良好的光束到达地球时也会分散到上千公里宽的面积上。
That, in turn, bounces the light down in a concentrated beam about a metre (3ft) wide to produce heat and drive generators.
这个塔又反过来把光以3米宽的光束集中反射到地上，这样可以产生热量和发电。
However, if the beam Angle for the direct light is too wide then it will violate the limits of a full cutoff classification.
然而，如果给直接的光光线角度太宽，那么它将会违犯完整近路分类的极限。
A wide Angle beam propagation method (WBPM) applicable to integrated optics is presented.
阐明了一种简单的宽角光束传播法在集成光学中的应用。
The beam is wide enough at that distance to hit a lot of stars, and still be strong enough for someone to notice. But I can't send a radio signal through the ground.
如果能做到，我会对准最近的星系，在这样遥远的距离上，波束会发散的足够广阔，会覆盖到许多星星。
In a multi, beam bathymetry system, phase detection is a key for achieving super, wide coverage.
多波束测深系统中，相位检测法是实现超宽覆盖测量的关键技术之一。
It has some important advantages such as wide Angle scanning, beam shaping, compact structure and low cost. These advantages make them very well suited to a number of military or civil applications.
它具有扫描角度宽，便于波束成形，结构紧凑、价格便宜便于大量生产等优点，所以在军事上和民用上有着广泛的应用前景。
A new type of dual circular polarization ultra-wide-band 8 ports beam forming network is proposed in this paper.
提出了一种新型宽带8路双圆极化和差波束形成网络，推导了网络的基本原理并给出了设计实例。
Unbond prestressed concrete wide flat beam-slab structure is a new type of floor system.
无粘结预应力混凝土扁梁-平板结构体系是一种新型的楼盖体系。
Multi-beam swath bathymeter is a seafloor mapping equipment with high efficiency, high accuracy and excellent resolution, especially fitted for wide sweep mapping.
多波束测深仪是一种高效率、高精度、高分辨率的海底地形测量设备，特别适合大面积的扫海测量作业。
Based on the theory of wide electron beam focusing with curved axis, a method for determining the off-axis point spread distribution is studied using the trajectories with curved axis.
根据曲轴宽电子束聚焦理论，研究了一种用曲轴轨迹确定轴外点扩散分布的方法。
A wide Angle beam propagation method in an oblique coordinate system (OCS wa BPM) based on coordinate transformation is used to simulate optical waveguides.
用坐标变换的倾斜坐标系中的广角光束传播法对光波导进行了分析。
A method to realize wide beam in ultra wide band by introducing a reflect structure is proposed in this paper.
本文提出了在蝶形缝隙天线后附加反射结构来实现宽波束单向辐射的方法。
Abstract: the steel box beam lifting on wide water surface faces a lot of risk factors and thereby has a higher safety control requirement.
摘要水上大跨度桥梁钢箱梁吊装工程风险大、对安全控制管理要求较高。
A satellite antenna characterized by wide-beam, wide-bandwidth and microwave right-hand-circular polarization was designed.
设计了一种宽波束、宽带宽的右旋圆极化卫星天线。
A U-shape patch element for phased array antennas with wide-beam both in E-and H-planes is presented in this paper.
该文介绍了一种在E面和H面都具有宽波束特性的U形贴片相控阵天线单元。
A U-shape patch element for phased array antennas with wide-beam both in E-and H-planes is presented in this paper.
该文介绍了一种在E面和H面都具有宽波束特性的U形贴片相控阵天线单元。
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