名词 turnaround:

1. time need to prepare a vessel or ship for a return trip

2. a decision to reverse an earlier decision

3. an area sufficiently large for a vehicle to turn around

4. act or process of unloading and loading and servicing a vessel or aircraft for a return trip

5. turning in the opposite direction

turnaroundn.周转时间；好转；转身；回车场；（轮船、飞机的）终点装卸时间turnaround block转身掩护turnaround costs周转费用turnaround plans检修计划turnaround speed周转速度turnaround cycle周转时间turnaround period准备续航期间turnaround system巡回系统,周转系统turnaround flight回程飞行turnaround dribble策应队员转身运球turnaround of unit装置工作周期,装置检修