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key punch |
键 穿孔 : 35 phrases in 14 subjects |
Agriculture | 1 |
Architecture | 1 |
Aviation | 1 |
Business | 3 |
Data processing | 1 |
Earth sciences | 1 |
Economy | 1 |
Electronics | 2 |
Finances | 1 |
General | 2 |
Information technology | 1 |
Oil / petroleum | 2 |
Space | 2 |
Technology | 16 |