介绍无人机的英语作文100字
President Barack Obama has confirmed the US is using unmanned aircraft to target suspected militants in tribal areas of Pakistan. He defended the drone attacks， saying they made precision strikes and were kept on a “tight leash1”.
What are drones ud for and how are they controlled？遇见最美的风景
To the military， they are UAVs （Unmanned Aerial Vehicles） or RPAS （Remotely Piloted Aerial Systems）. However， they are more commonly known as drones.
物业消防管理
时光的味道蓝牙耳机维修Drones are ud in situations where manned flight is considered too risky or difficult. They provide troops with a 24-hour “eye in the sky”， ven days a week. Each aircraft can stay aloft2 for up to 17 hours at a time， loitering3 over an area and nding back real-time imagery of activities on the ground.
慎字组词>差异的英文
国家安全教育心得体会Tho ud by the United States Air Force and Royal Air Force range from small intelligence， surveillance and reconnaissance craft， some light enough to be launched
by hand， to medium-sized armed drones and large spy planes.
>示爱短信
