一种超大功率的无线电波发射技术，该技术通过聚集一道波束并加热那些区域将电离层的一些区域抬高。
A super-powerful radiowave-beaming technology that lifts areas of the ionosphere by focusing a beam and heating those areas.
许多天文学家对长期研究空中的特殊区域都很感兴趣，多波束接收器不提供这方面的特殊便利。
For many astronomers, interested in studying specific locations in the sky for extended periods of time, the multi-beam receiver offers no particular advantages.
所得数字结果表明，在波束的近轴区域内为获得同样的计算精度，近轴近似法所需要的计算机时间远小于复射线追综法的时间。
Numerical computations show that paraxial approximation gives almost the same accuracy in the paraxial region as complex ray method but spends much less computer time.
在脉冲超宽带穿墙检测与定位当中，要求天线在水平面内具有宽波束以达到对房屋内部区域的有效覆盖；
Wide beam width in horizon plane would be expected in antenna design for IR-UWB through-the-wall detection to cover most area of the room.
研究通过天线波束扫描扩大SAR区域成像范围的方法，以适应较大区域中等分辨率成像的要求。
The approach for enlargement of SAR patch mapping area by antenna beam scan is investigated, which serves for moderate fine-resolution mapping of medium-sized terrain patches.
所得数字结果表明，在波束的近轴区域内为获得同样的计算精度，近轴近似法所需要的计算机时间远小于复射线追综法的时间。
Numerical computations show that paraxial approximation gives almost the same accuracy in the paraxial region as complex ray method but spends much...
在此区域内，来自卫星的波束场强必须超过某一特定值。
Within this area, the field strength of the beam from the satellite must exceed a specific value.
一种三维超声成像系统包括矩阵阵列换能器，它能够在最大体积区域内扫描波束。
A three dimensional ultrasonic imaging system includes a matrix array transducer which is capable of scanning beams over a maximal volumetric region.
同时以高斯波束为例，给出了波束因子的主要计算方法：积分法和区域近似法。
Taking Gaussian beam as example, Integral method and Localized Approximation for BSC's is discussed. Finally the far-field scattered intensity is simulated. 6.
同时以高斯波束为例，给出了波束因子的主要计算方法：积分法和区域近似法。
Taking Gaussian beam as example, Integral method and Localized Approximation for BSC's is discussed. Finally the far-field scattered intensity is simulated. 6.
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