题目内容
Nearly all glass windows in large aircraft have an_____ heating element to melt ice.
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In most cockpits the pilot's control ______is located centrally.
The layout and function of cockpit displays and controls are designed to increase pilot situation______.
In the design of the cockpit in a military fast jet, the traditional “knobs and dials” associated with the cockpit are mainly_____.
Instrument panels are now almost wholly replaced by electronic displays which are often _____ to save space.
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