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verbal system | |||
voice communication system |
通话 系统 : 54 phrases in 11 subjects |
Air defense | 1 |
Automobiles | 1 |
Aviation | 13 |
Business | 1 |
Communications | 1 |
Electronics | 20 |
Nautical | 2 |
Nuclear and fusion power | 1 |
Space | 3 |
Technology | 7 |
Telecommunications | 4 |