单词	劍鼻
释义	同HILT
随便看	obssessed obss {=operational and business support system} obs. spot obst obstacle obstacle assessment surface obstacle assessment surface (oas) obstacle avoidance sonar obstacle avoidance test obstacle chase race obstacle clearance altitude obstacle clearance altitude (oca) obstacle clearance height obstacle clearance height (och) obstacle clearance limit obstacle clearance limit (ocl) obstacle clearance surface obstacle clearance surface (ocs) obstacle course obstacle crossing performance obstacled obstacle detection obstacle detection limit switch obstacle detouring survey obstacle-free zone