Where a commodity still cannot be used properly after being repaired twice within the guaranteed maintenance period, the business operator must be responsible for replacement or return.

在保修期内两次修理仍不能正常使用的，经营者应当负责更换或者退货。

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It is the responsibility of the test system designers, integrators, and installers to make sure operator and maintenance personnel protection is in place and effective.

测试系统的设计者、集成方和安装方有义务确保操作者和维护人员的防范措施适当、有效。

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Responsible for build assemble work instruction, manual, and training of assembler, operator and maintenance of the machine.

负责机械装配工作指导，说明书编写，用户及维护部门的培训。

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In evidence to the Deputy Commissioner, an examiner from the Vehicle and Operator Services Agency reported problems with the operator's maintenance systems.

BBC: Edinburgh, Fife & East Scotland

Individuals named were hairdresser Joseph Tyrrell, of Prescot Road in Liverpool, grocer Rafique Maroof Raja, of Thornton, Kirkcaldy, pipework specialist S Stewart, of Woolton in Liverpool, David Alan Jay, who trades in property maintenance in Cranham, Essex, and coach operator Brian Clifford Tattersall, of Bolton.

BBC: Tax dodgers named on HMRC list

The Orbita predictive maintenance service that Bombardier is providing to the Scottish rail operator swallows 70, 000 data points a day.

FORBES: The Great Train Catch-Up