undercarriage bay

例句：

1. 1.The undercarriage bay is where the aircraft's main engine and propeller are stored.
   机库舱是飞机主发动机和螺旋桨的储存地。
2. 2.The undercarriage bay was designed to protect the aircraft from external impacts.
   机库舱的设计是为了保护飞机免受外部冲击。
3. 3. During maintenance, the technicians carefully inspected the undercarriage bay for any signs of damage.
   在维护期间，技术人员仔细检查了机库舱，以查找任何损坏的迹象。