monitoring aerial

例句：

1. 1.The pilot was monitoring the aerialfor any signs of trouble.
   飞行员正在监视飞机，寻找任何不寻常的迹象。
2. 2. Themilitary has been monitoring aerialsin the area for weeks.
   军方已经监视该地区的飞机数周了。
3. 3. The flightcrew was monitoring the aerial toensure safety.
   飞行机组人员正在监视飞机以确保安全。