| |||
centre line of track; centre line of railway | |||
track center line; central line of track | |||
track alignment |
线路中心 线 : 25 phrases in 9 subjects |
Automobiles | 1 |
Aviation | 1 |
Bridge construction | 3 |
Electronics | 5 |
Geophysics | 1 |
Information technology | 2 |
Medical | 1 |
Technology | 10 |
Telecommunications | 1 |