pencil beam

• 笔形波束

pencil beam的用法和样例：

例句

1. In this paper a general study of the relation between the performance of shaped beams and beam width and spacing has been done for multiple-beam antennas with array-fed reflectors.
   该文主要对赋形波束的性能与波束宽度和波束间隔间的关系进行了一般性的研究。