| |||
exchange line | |||
switched line | |||
dial-up line; interchange circuit; switched circuit |
交换线路: 53 phrases in 11 subjects |
Agriculture | 2 |
Electronics | 22 |
Geophysics | 1 |
Information technology | 9 |
Metallurgy | 1 |
Multimedia | 2 |
Space | 1 |
Technology | 9 |
Telecommunications | 4 |
United Nations | 1 |
Wind Energy | 1 |