flyby 也作 fly-by
n.（名词）【复数】 fly.bys A flight passing close to a specified target or position, especially a maneuver in which a spacecraft or satellite passes sufficiently close to a body to make detailed observations without orbiting or landing.飞越：一架飞机靠近或飞越某指定地点或目标，尤指为获得对某一天体的详细观察而在不进入轨道或着陆的情况下操纵飞行器或卫星以足够近的距离飞过
