unpiloted

1.6月25日拍摄的首都场旅客捷运系统“”厢内景。

An unpiloted vehicle shows up at the Capital International Airport in Beijing, capital of China, June 25, 2007.

2.Iraqi security forces were placed on high alert and American aircraft —unpiloted reconnaissance drones flying low, and fighter jets roaring high above —crossed the capital.

伊拉克安全部队处于警戒状态，美国空在首都上空穿梭，无人驾驶侦察低空飞行，战斗喷空呼啸。