undercarriage

🇬🇧/ˈʌndəkærɪdʒ/ 🇺🇸/ˈʌndərkærɪdʒ/ 2
The undercarriage of an aeroplane is the part, including the wheels, which supports the airplane when it is on the ground and when it is landing or taking off. (飞机的)起落架

noun [专属名词]飞机起落架,着陆装置;底盘

The undercarriage was fully retracted.
起落架被完全收起。

单词造句:
网友用“Undercarriage”造句精选
The pilot found that the undercarriage could not be retracted. 驾驶员发现飞机的起落架不能缩回。
All it requires are some minor changes to the front undercarriage. 唯一要做的不过是对前起落架做一些微小的改动。