公共英语PETS4写作精选短语34

全国等级考试资料网 2019-01-23 14:49:19 92

reventive maintenance
the useful practice of routinely repairing, cleaning and replacing parts on schedule in order to prevent unexpected problems and more expensive repairs in the future
Example:
Following a new preventive maintenance schedule saved our company from experiencing the lost time and costly repairs that used to occur.

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