安排请求的维护，以解决需要立即维修或纠正补救措施的故障。制定计划，对急需的设备/机器进行计划外维护工作。使用专业人员快速周转以进行补救。 Scheduling requested maintenance in order to address breakdowns where repairs or corrective remedies are needed immediately. Create a scheme for undertaking unplanned maintenance work on equipment/machinery that has come to be in urgent need for it. Express turnaround to redress using specialized personnel.