unmanned aerial vehicles

• 无人机

unmanned aerial vehicles的用法和样例：

例句

1. We've confirmed that this ship has launched numerous unmanned aerial vehicles probably used for reconnaissance.
   我们已经证实那辆船只已经投放了数量众多的无人机，可能用于侦查行动。
2. Presently, anti-radiation UAV has become the important aim of the aerial defence weapon.
   摘要目前反辐射无人机已成为防空武器的重要作战目标。