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coding system | |||
numbering system | |||
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numbering system |
编号 系统 : 22 phrases in 11 subjects |
Agriculture | 1 |
Automobiles | 1 |
Aviation | 3 |
Earth sciences | 1 |
Economy | 1 |
Electronics | 7 |
Finances | 1 |
Information technology | 1 |
Name of organization | 1 |
Securities | 3 |
Technology | 2 |