题目内容
词汇与结构An aircraft that has ____ both the localizer and the glideslope signal is said to be established on the approach.
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词汇与结构Once ____ on an approach, the Autoland system or pilot will follow the ILS and descend along the glideslope, until the Decision Altitude is reached.
词汇与结构From the Decision Altitude, the pilot will either try the same approach again or ____ to another airport.
词汇与结构We can execute a ____ if the visibility is below the minima required to execute a safe landing.
词汇与结构It also allows instrument approaches to be made procedurally at airports where air traffic control does not use ____or in the case of ____ failure.
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