routine maintenance works 例行维修工程
Proposed maintenance works 修缮工程计划
pre-publicised maintenance works 预早公布的保养工程
Justifications for the maintenance works 进行修缮工程的理据
maintenance of works 工程维修
minor repair and maintenance works 小修保养工程
maintenance and improvement works 维修及改善工程
public works maintenance equipment operator 公共工程维护设备操作员
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