注：维修是指通过一些活动，诸如测试、测量、更换、调整以及修复等，使功能部件维持在规定状态。

Note: Maintenance includes keeping a functional unit in a specified state by performing activities such as tests, measurements, replacements, adjustments and repairs.

youdao

使功能部件保持在或恢复到能完成其规定功能的状态的任何活动。

Any activity intended to retain a functional unit in, or to restore it to, a state in which it can perform its required function.

youdao

维修是指通过一些活动，诸如测试、测量、更换、调整以及修复等，使功能部件维持在规定状态。

Maintenance includes keeping a functional unit in a specified state by performing activities such as tests, measurements, replacements, adjustments and repairs.

youdao