1. The aircraft must pass a thorough inspection to ensure its airworthiness before it can be cleared for takeoff.
这架飞机必须经过彻底的检查，以确保其适航性，然后才能获准起飞。

2. The airline is responsible for maintaining the airworthiness of its entire fleet of aircraft.
航空公司有责任保持其整个机队的适航性。

3. The pilot must be knowledgeable about the regulations regarding airworthiness and maintenance procedures.
飞行员必须了解有关适航性和维护程序的规定。

4. A certificate of airworthiness is issued to aircraft that meet the necessary safety standards.
符合必要安全标准的飞机将获得适航证书。

5. Regular inspections are conducted to ensure the continued airworthiness of the aircraft.
定期检查是为了确保飞机的持续适航性。

6. The airworthiness of the aircraft was called into question after a series of incidents occurred during flights.
在一系列事件发生后，飞机的适航性受到了质疑。