求翻译：调车工作是完成铁路运输任务过程中的重要组成部分，也是车站的重要工作。对编组站和区段站来说，调车工作更是其主要生产活动，它对完成车站的数量和质量指标起着重要作用。调车工作对提高运输效率、降低运输成本，保证铁路畅通无阻、四通八达、安全正点、当好先行，起着重要作用。是什么意思？

Shunting work is an important part in the completion of the railway transportation task, but also the important work of the station. Marshalling yard and section of the station, shunting work is the main production activities, it completed the quantitative and qualitative indicators of the%