 |
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| two-way configuration | |||
| two wire system | |||
| two-wire system | |||
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| two way configuration | |||
| 二线制: 29 phrases in 12 subjects |
| Agriculture | 1 |
| Aviation | 1 |
| Computers | 1 |
| Cryptography | 2 |
| Earth sciences | 5 |
| Electric machinery | 1 |
| Electronics | 5 |
| Hydroelectric power stations | 2 |
| Information technology | 1 |
| Mathematics | 4 |
| Space | 1 |
| Technology | 5 |