The pilot then selects the 0220 code on their transponder and the track on the radar screen of the air traffic controller will become correctly associated with their identity.

随后飞行员把应答机的代码设置为0220，这样飞机的身份信息就能正确显示在航空管制的雷达屏幕上。

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C. airport and installed iris scanners that can, from 1 foot away and in a fraction of a second, confirm a pilot's identity.

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Barrowman's character is a mysterious, immortal man from the 51st century who adopted the identity of a World War II Royal Air Force pilot and ultimately ended up protecting mankind with the help of a secretive alien-hunting team of Earthlings.

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The government hopes the pilot scheme will pave the way for compulsory identity cards within the next decade.

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