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absolute code; basic code | |||
direct code | |||
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specific code |
绝对码 : 24 phrases in 12 subjects |
Aviation | 1 |
Electronics | 2 |
Hydroelectric power stations | 1 |
Information technology | 7 |
Mathematics | 1 |
Metallurgy | 3 |
Multimedia | 1 |
Shipbuilding | 1 |
Space | 2 |
Steel production | 1 |
Technology | 3 |
Telecommunications | 1 |