工程地质选线 engineering geoligic location of line 线间距 distance between centers of tracks； midway between tracks 车站分布 distribution of stations ..
2
?线间距离
...es of track 线间距离 ;线间距 distance between centres of lines;distance between centers of tracks;midway between tracks 线路试验 ;线路实验 track test;road test;running test ..