airworthiness directive
原始詞典資料1 筆記錄
這個字我們還沒有寫成教學內容。以下是外部詞典記錄的用法，原文照列，方便你先看懂它的意思。
airworthiness directivenoun
- 1
aeronauticsaerospaceaviationA regulation issued by the civil aviation authority of a country or region, generally in response to the discovery of an unsafe condition affecting particular aircraft, requiring that certain actions (such as specified modifications or enhanced maintenance or inspection requirements) be performed on these aircraft in order for them to remain legally airworthy.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。