For decades, Doble has been collecting and storing what is now an incredible treasure trove of valuable apparatus maintenance data.

数十年来，道波一直收集和保存在现今看来是一笔极有价值的电力设备的维护数据。

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G. maintenance Data: Include maintenance procedures, recommendations for maintenance materials and equipment, and suggested schedule for cleaning.

维护保养资料：包括维护程序、推荐的维护用品和设备以及建议的清洁进度安排。

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The maintenance management: mainly refers to the librarians'maintenance, code maintenance, data backup and log management of the system.

维护管理：主要是图书管理员维护，代码维护，数据备份和系统日志管理。

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Using interviews, inspections of wreckage and reviews of maintenance data, NTSB investigators have determined that the first, eastbound Metro-North train derailed and came to a stop in the path of an approaching westbound train.

WSJ: Probe of Metro-North Derailment in Connecticut Focuses on Rail

By setting up a few simple Excel formulas (nothing more complicated than addition and division, you can see what they look like in this sample spreadsheet), you can not only track your maintenance data (what the mechanics did, when they did it, how much it cost, and what the mileage was at the time) but also see your average daily mileage during each period between servicings.

CNN: Use your Mac to track your money

Also, LTE as a network technology not only supports higher speeds but is also more efficient than current 3G networks at handling data, reducing maintenance and handling costs.

FORBES: Verizon Promotes LTE Over iPhone With Good Reason