drop wheelslanding-gear extensionwheels-down actuation放: release; set free; let go起落架: alighting carriage; landing ...收放起落架: operation of landing gear放起落架飞行: fly feet off放起落架下滑: gear-down glide下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:放起落架,即可在微信中查询翻译