Also, Doing CATIIIb autopilot landing requires extensive systeminspection periodically to ensure the system CATIIIb capability.
同时，进行三类自动驾驶着陆的机场还需要进行周期性检查以确保三类着陆要求。
2
Annual inspection and special inspection and jacket for ship and platform, systeminspection for ship structure, equipment and piping and evaluate for their natural life.
船舶、钻井平台、导管架的年检、特检以及船体、机电设备、管线的系统检验和寿命评估等。
3
Assistant fire systeminspection includes hydrants, sprinkler system and fire alarm system each month. According to maintenance plan, to assist fire equipments maintenance.