heavy maintenance

简明释义

大修

英英释义

例句

1.Our fleet vehicles are subjected to heavy maintenance every six months.

我们的车队车辆每六个月进行一次大修。

2.After years of service, the train required heavy maintenance to replace worn-out parts.

经过多年的服务，这列火车需要进行大修以更换磨损的部件。

3.The factory scheduled heavy maintenance during the holiday shutdown.

工厂在假期停工期间安排了大修。

4.The aircraft underwent heavy maintenance to ensure it was safe for flight.

这架飞机进行了大修以确保飞行安全。

5.The ship is currently in dry dock for heavy maintenance before its next voyage.

这艘船目前正在干船坞进行大修，以便为下一次航行做准备。

作文

In the world of aviation, the term heavy maintenance refers to a comprehensive and rigorous set of inspections and repairs that an aircraft undergoes after it has been in service for a significant period. This process is essential for ensuring the safety and reliability of the aircraft. During heavy maintenance (重维护), various components of the aircraft are meticulously examined, repaired, or replaced as necessary. The aim is not only to comply with regulatory requirements but also to extend the lifespan of the aircraft and enhance its performance.The heavy maintenance process typically includes tasks such as engine overhauls, structural inspections, and systems checks. For instance, engines may need to be removed and sent to a specialized facility for extensive servicing. This can involve disassembling the engine, inspecting all parts for wear and tear, and replacing any components that do not meet safety standards. Additionally, the aircraft's fuselage and wings must be inspected for any signs of corrosion or damage, which could compromise the aircraft's integrity.One of the critical aspects of heavy maintenance is the documentation and record-keeping involved. Each step of the maintenance process must be carefully logged to ensure compliance with aviation regulations. This documentation is crucial not only for safety audits but also for tracking the maintenance history of the aircraft. Airlines and maintenance organizations must maintain detailed records of all work performed during heavy maintenance (重维护), including parts replaced, labor hours, and any discrepancies found during inspections.The timing of heavy maintenance is also vital. Airlines often schedule these maintenance events during off-peak times to minimize disruptions to their flight schedules. However, unforeseen issues can arise, leading to unscheduled maintenance. In such cases, the airline must quickly assess the situation and determine whether the aircraft is safe to operate or if it requires immediate heavy maintenance.Furthermore, the financial implications of heavy maintenance are significant. The costs associated with this level of maintenance can be substantial, often running into millions of dollars, depending on the aircraft type and the extent of the work required. Airlines must budget for these expenses, balancing the need for safety and reliability with the economic pressures of operating a commercial fleet.In conclusion, heavy maintenance (重维护) is a critical component of aviation safety and efficiency. It encompasses a wide range of inspections and repairs designed to keep aircraft in optimal condition. While the process can be costly and time-consuming, it is essential for ensuring that airplanes remain safe for passengers and crew alike. As the aviation industry continues to evolve, the standards and practices surrounding heavy maintenance will undoubtedly adapt, but its importance will remain unwavering.