降こう着ちゃく装そう置ちこうちゃくそうちMeanings1nounlanding gearTechnical term for the undercarriage of an aircraft, including wheels, struts, and related mechanisms.パイロットは降こう着ちゃく装そう置ちを下おろして着ちゃく陸りくの準じゅん備び