短语词组短語underwing coverts 下覆羽underwing moth 後翅蛾white underwing 白裳夜蛾underwing pod 翼下吊艙underwing carrier 翼下吊架;機翼下吊架underwing pylon 翼下外掛梁underwing boom 翼下噴杆underwing launcher 翼下發射架underwing rack 翼下發射導軌 返回 underwing