spacer step

• 间步,间插步聚

spacer step的用法和样例：

例句

1. This paper studies how to detect the moving targets on the land and sea surface in the background of clutters by using pulse-pulse step frequency radar.
   研究了用脉间步进频率雷达对杂波背景噪声下地面或海面动目标的探测。