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 fusion

track-to-track association

track-to-track fusion

track-to-track moving time

transforming single track into double track

double - track existing single track line

accelerated life predicting

accuracy predicting

Adviser Committee for Predicting Earthquake of China

amount predicting

analysis and predicting

ash content predicting

Assessing and predicting

Burning rate predicting

characteristic predicting