题目内容
词汇与结构These are defined via the ARINC 424 standard. The navigation database is normally ______ every 28 days, in order to ensure that its contents are current.
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词汇与结构Each FMS contains only a ________ of the ARINC data, relevant to the capabilities of the FMS.
词汇与结构The navigation database contains all of the ________ information for building a flight plan and information relevant to it.
词汇与结构The flight plan is generally determined on the ground, before ________ either by the pilot for smaller aircraft or a professional dispatcher for airliners.
词汇与结构This can include performance information such as gross weight, fuel weight and center of ________.
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