from maintenance and repair的意思|示意

Profits used to come from selling engines and replacement parts. Now they come from providing long-term repair and maintenance-or "power by the hour".

公司原本通过销售引擎和零部件来获取利润，而现在则通过提供客户长期的检修和保养服务或者称之为“按飞行小时包修合同”。

Make the repair the parts which disassembled from the machines , in order to track, make the record about exchange and maintenance.

安排维修生产线换下来的各类零部件，及各类配件的更换记录和维修记录，便于及时跟踪。

The measure adopted from the several fields of Furnace tube design, material selection, service maintenance, testing and repair are very effective.

从炉管设计、选材、使用维护、检测和维修几方面采取措施将是十分有效的。

The elevator scene of remote technical support, according to the field data from fault analysis, regular guidance repair and maintenance.

电梯现场的远程技术支持，根据现场传回的数据分析故障原因，定期指导维修保养。

I have gathered all the knowledge I learned from work about operation, maintenance, and repair of an electric dust catcher in this article.

本文旨在对参加工作以来所学的电除尘器运行、维护、检修方面的知识进行汇总，以便指导以后的工作。