radar coverage-diagram

例句：

1. 1. The radar coverage diagram shows the location of the target aircraft.
   雷达覆盖图显示了目标飞机的位置。
2. 2. The radar coverage map is used to display the coverage area of the radar system.
   雷达覆盖图用于显示雷达系统的覆盖区域。
3. 3. The radar coverage diagram helps us to identify the direction of the enemy's missile launch.
   雷达覆盖图帮助我们识别敌人的导弹发射方向。