美国科学家发明出一种名为“独行客”(Solo Trek)的飞行器。它造型独特,采用碳纤维材料制作而成,机身轻巧结实,能够在狭小的空间内自由起降。“独行客”每次只能承载一人。它有两个发动机和两个螺旋桨,起飞时,发动机将动力传送给螺旋桨,螺旋桨转动产生对地面的推力,推动飞行器 American scientists invented a vehicle called Solo Trek. Its unique shape, made of carbon fiber material, light and strong body, able to take off and land in a small space. “Solo traveler” can only carry one person at a time. It has two engines and two propellers, take off, the engine will be transmitted to the propeller power, the propeller rotation produces thrust on the ground, pushing the aircraft