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控制活动 |
control activity : 24 phrases in 13 subjects |
Aviation | 4 |
Business | 1 |
Desert science | 2 |
Economy | 1 |
Electronics | 2 |
International trade | 1 |
Librarianship | 1 |
Logistics | 1 |
Name of organization | 1 |
Securities | 2 |
Technology | 3 |
Textile industry | 1 |
United Nations | 4 |