An eerie drone fills the air, falling somewhere between the sound of a buzzing wasp and a light aircraft taking off.
一个神秘的嗡嗡声弥漫在空中，落在了某个地方，那声音间于嗡嗡作响的蜜蜂和轻型飞机起飞的声音之间。
That's literally the tagline of a recent Air Force recruiting ad featuring drone technology: "It's Not Science Fiction.It's What We Do Every Day.
美国空军最近推出了一条关于无人机技术的广告标语——“这不是科幻小说，这是我们每天都工作”。
From his spot beneath the famous Wright military Flyer in the Smithsonian National Air and Space Museum, Peter Singer is reminded of a modern military drone.
彼得·辛格的工作场所在著名的莱特军用飞机下，该飞行器现在是史密森国家航空航天博物馆的财产；彼得·辛格与人们谈起了现代军用无人机。
Surrounding by forest; the air vibrates to the sound of bird calls and as night falls the engine drone of the Sicarders.
四周都被森林环绕，空气中回荡着鸟的鸣叫声，当夜幕降临时，斯卡达的引擎嗡嗡作响。
The PLA Air Force (PLAAF) has converted some of its retired Jian-7 fighters into unmanned target drone to simulate enemy aircraft in air-to-air and surface-to-air weapon testing.
PLA空军（PLAAF）已经把一些退役歼-7战斗机改装成无人靶机，在空对空和地对空武器测试中去模拟敌方飞机。
The PLA Air Force (PLAAF) has converted some of its retired Jian-7 fighters into unmanned target drone to simulate enemy aircraft in air-to-air and surface-to-air weapon testing.
PLA空军（PLAAF）已经把一些退役歼-7战斗机改装成无人靶机，在空对空和地对空武器测试中去模拟敌方飞机。
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