论文部分内容阅读
一架小型的灰色直升机在跑道上开始启动,旋冀缓慢地拍打着从海边吹来的浓雾和雨水。这是一架无人驾驶的直升飞机,在
A small gray helicopter started on the runway, slowly swirling the fog and rain blowing from the sea. This is an unmanned helicopter, at