| |||
single-channel |
单 道的 : 27 phrases in 13 subjects |
Automobiles | 5 |
Aviation | 1 |
Economy | 2 |
Electronics | 1 |
General | 5 |
Hydroelectric power stations | 1 |
Insurance | 1 |
Metallurgy | 2 |
Refrigeration | 1 |
Space | 1 |
Technology | 4 |
Telecommunications | 2 |
United Nations | 1 |