optimal generation capacity
optimal generation dispatching
optimal generation scheme
MINLP optimal synthesis
Optimal Synthesis Conditions
optimal synthesis design
process optimal synthesis
engineering district；maintenance of way section；track division；track district；track maintenance division
jointless line；continuously welded rail track；jointless track
non-NTDS track {dummy track}
replacing and laying track with track panel
track-to-track association
track-to-track moving time
transforming single track into double track