come income meaning in English

主要收入

The first part of the paper discussed the locomotive examined and repaired data management and status and existent abuse in china ; clarified the effect of the locomotive section information while management , and clarified the need of whole management of locomotive examined and repaired data and its coming income ; and more brought forward the important of locomotive examined and repaired data collection and network transmission in locomotive section ; introduced the task the paper will be finished
论文第一章论述了现阶段国内机车检修数据管理和现状及所存在的弊端，阐明了机务段信息统一管理的作用、对机务段机车检修试验数据进行统一管理的必要性及其可以带来的收益，进一步提出了机务段进行机车检修数据采集与网络传输的重要性；介绍了本论文要完成的工作。