例句與造句

1. The serpentine feed is the core of a frequency scanning antenna feed system , which produce proper amplitude and phase distribution for the antenna arrays . most of all , it make the beam scanning over a large angle range by means of changing operating frequency
   它為天線陣提供要求的幅度、相位分布，更為重要的是當頻率發(fā)生少許變化時使線源的等相位面產生顯著的傾斜，完成波束在空間掃描。
2. It's difficult to find frequency scanning antenna in a sentence. 用frequency scanning antenna造句挺難的