英语词汇“vertical interval”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	vertical interval
释义	vertical interval vertical interval Difference in altitude between two specified points or locations, e.g., the battery or firing ship and the target; observer location and the target; location of previously fired target and new target; observer and a height of burst; and battery or firing ship and a height of burst, etc. vertical interval vertical interval VNAV descent information from FAF (final approach fix) to the runway with threshold crossing height of 50'.The vertical distance between successive contour lines on a topographical chart. It is constant for each series of charts. Its value is indicated at the bottom of the chart. Charts normally do not show contours below a certain height—on a topographical chart of 1:500,000, no contours are shown for heights below 500 ft. AcronymsSeevillage idiot
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