mobile passenger stairs
/ˈməʊbaɪl ˈpasɪndʒə ˈsteəz/
n
English · mobile passenger stairs中文 · 客梯车Español · escalerilla transportableFrançais · escalier automoteur
意味：Truck that carries a telescopic staircase, which is positioned at an aircraft door to allow passengers to enter or exit. stairs