| |||
diplet | |||
doubled | |||
doublet | |||
| |||
α-doublet |
双重 线 : 32 phrases in 12 subjects |
Aviation | 3 |
Chemistry | 1 |
Electronics | 1 |
General | 1 |
Hydroelectric power stations | 1 |
Information technology | 2 |
Metallurgy | 7 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 6 |
Telecommunications | 2 |
Textile industry | 6 |