FIRB是什么意思_FIRB的用法_翻译_读音

- abbr. =flight information region boundary 飞行信息区域边界；Flying Information Region Boundary 飞行情报保证区边界
释义常用度分布图

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临近单词

fir Firicel Firkins firring Firbank Firvida Firnigl firpene Firaldi Firchow Firullo

FIRB