Because the current system is less precise, controllers need to give planes plenty of room as they lock onto the runway, descending in a slow, stepped approach.

因为现今的系统不够精确，飞机锁定跑道、一步步缓慢下降的过程中，空中交管员必须给飞机留有余地。

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But as the jet roared down the runway for takeoff, it became clear that the Obama era in America had passed, and with it an approach to public life that is unlikely to be repeated soon.

但是，随着喷气机在起飞跑道上咆哮，美国的奥巴马时代显然已经成为过去，一种公共生活方式也随之而逝，它不太可能很快重现。

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A maneuver to transition the airplane from approach to touchdown on the runway.

一种将飞机从进近过渡到在跑道上接地的机动动作。

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Burning 3, 785 liters of fuel an hour, they turn left and right and speed up and slow down as air traffic controllers on the ground try to arrange them like a conga line for their final approach to the runway.

FORBES: Magazine Article

The jumbo jet experienced turbulence on approach to Toledo and was within sight of the runway when the pilot pulled the plane up and circled the airport, according to reporters on board.

CNN: Air Force One aborts landing, second try successful