List B of Maintenance Information System and Infrastructure Support
manufacture order summary maintenance edit list
material detail maintenance edit list
purchase order summary maintenance edit list
maintenance requirements list
engineering district；maintenance of way section；track division；track district；track maintenance division
Packing List， Shipping List
3 level maintenance tset
active maintenance downtime
active maintenance time
active preventive maintenance time
Adaptive Maintenance
适应性养护
自适应维修
循序修正最佳化
自适应速度控制
适应维护
administration of maintenance equipment