题目内容
当公路的设计车速为60km/h时，反向曲线间的直线段最小长度以不小于（）为宜。
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The PFD is designed to improve a pilot's situational awareness by integrating this information into a ______display instead of six different analog instruments.
PFDs also increase situational awareness by alerting the aircrew to unusual or potentially_____conditions (e.g., low airspeed, high rate of descent) by changing the color or shape of the display or by providing audio alerts.
The second part of the glass cockpit, comprising over-and-under center display _____ , shows the aircraft's systems conditions and engines performance.
This is variously called EICAS (Engine Indications and Crew Alerting System) or ECAM (Electronic Centralised Aircraft Monitor), the former being the Boeing term and the latter Airbus' ______.
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