铁路车辆和其他技术设备一样具有一定寿命,它在运用过程和自然力的作用下会不断磨损、变旧直至报废。为了保证运输生产的进行,就要求不断地对铁路车辆进行更新。对铁路货车究竟能使用多久最经济合理?目前,持有不同意见。有的认为,物尽其用是最大的节约,货车使用年限越长越经 Railway vehicles, like other technical equipment, have a certain life span. They wear out and become old until they are scrapped under the action of processes and natural forces. In order to ensure the progress of transport production, it is required to continuously update the railway vehicles. How long to use a railway wagon is the most economical and reasonable? Currently, there are different opinions. Some believe that the best use of things is the biggest savings, the longer the service life of the truck