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.

克安全部队处于高警戒状态，美国空军在首都上空穿梭，无人驾驶侦察机低空飞行，战斗喷气机高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空军继续投资于空喷气研究所（原来的大西洋研究所）的可变喷流管火箭发动机系统，将其作为增程空空导弹的未来推进选项。

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高警戒状态，美国空军在首都上空穿梭，无人驾低空飞行，战斗喷气高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空军继续投资于空喷气研究所（原来的大西洋研究所）的可变喷流管火箭发动，将其作为增程空空导弹的未来推进选项。

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.

伊拉部队处于高警戒状态，美国空军在首都上空穿梭，无人驾驶侦察机低空飞行，战斗喷气机高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空军继续投资于空喷气研究所（原来的大西洋研究所）的可变喷流管火箭发动机系统，将其作为增程空空导弹的未来推进选项。

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.

克安全部队处于高警戒状态，美国空军在首都上空穿梭，无人驾驶侦察机低空飞行，战斗喷气机高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空军继续投资于空喷气研究所（原来的大西洋研究所）的可变喷流管火箭发动机系统，将其作为增程空空导弹的未来推进选项。

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高警戒状态，美国空军在首都上空穿，驾驶侦察机低空飞行，战斗喷气机高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空军继续投资于空喷气研究所（原来的大西洋研究所）的可变喷流管火箭发动机系统，将增程空空导弹的未来推进选项。

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高警戒状态，美国空军在首都上空穿梭，无人驾驶侦察机低空飞，气机高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空军继续投资于空气研究所（原来的大西洋研究所）的可变火箭发动机系统，将其作为增程空空导弹的未来推进选项。

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高警戒状态，美国军在首都上穿梭，无人驾驶侦察飞行，战斗喷气高呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国军继续投资于喷气研究所（原来的大西洋研究所）的可变喷流管火系统，将其作为增程导弹的未来推进选项。

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高警戒状态，美国空都上空穿梭，无人驾驶侦察机低空飞行，战斗喷气机高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空继续投资于空喷气研究所（原来大西洋研究所）可变喷流管火箭发动机系统，将其作为增程空空未来推进选项。

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高警戒状态，美国空军在首都上空穿梭，无人驾驶侦察机低空飞行，战斗喷气机高空呼啸。

In addition, the USAF continues to fund development work of the Aerojet (formerly Atlantic Research) Variable Flow Ducted Rocket ramjet system as a future propulsion option for an extended range AAM.

此外，美国空军继续投于空喷气研究所（原来的大西洋研究所）的可变喷流管火箭发动机系统，将其作为增程空空导弹的未来推进选项。