planned maintenance

基本解释

The tenders should include the technical specifications for the planned maintenance purpose and the fixed price of ships handbooks.
投标书应包含用于维护保养的技术说明书和船舶手册的固定价格。
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As a minimum, this system shall include planned maintenance activities, packaging and preservation of equipment, tooling and gauging.
这个系统至少应包括有计划的维护活动、为设备工装和量具提供包装和防护。
The first aircraft took more than a year to complete the Planned Maintenance Intervals (PMI) 1, 2, and 3 that will add five to six years of service life to the aircraft before another PMI is due.
第一架飞机用了一年多的时间才完成计划维护间隔（PMI）1、2、3，并在另一个计划维护间隔完成前，将增加5到6年的服役时间。
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And Twitter, at the request of the State Department, delayed a planned shutdown of its service for maintenance.

Gasoline production has been limited by a series of refinery shutdowns, some for planned maintenance, others because of accidents.
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It exceeded that figure in May with 304, 000 bpd despite planned maintenance work on one of its two upgraders.
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This is largely due to an expected dip in production in the second and third quarters owing to seasonal factors and planned maintenance, as well as asset sales.
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