空中交通调度员通过无线电和飞机保持联络。

Air traffic controllers were in radio contact with the aircraft.

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美国航空当局正在调查，当两架飞机试图降落时，华盛顿附近的里根机场一名空中交通调度员是不是睡着了。

The aviation authorities in the United States are investigating whether an air traffic controller fell asleep at Reagan National Airport near Washington as two planes attempted to land.

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“我们有一例严重的头部外伤，”调度员说。“捄援直升飞机预估的到达时间为5点45分。”

"We have a major head trauma," the dispatcher said. "AirLife has an ETA of 5:45."

youdao

“我们有一例严重的头部外伤，”调度员说。“捄援直升飞机预估的到达时间为5点45分。”

"We have a major head trauma," the dispatcher said. "AirLife has an ETA of 5:45."

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