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microfilm computer output |
缩 微胶片计算机输出 : 19 phrases in 12 subjects |
Agriculture | 3 |
Aviation | 1 |
Data processing | 2 |
Earth sciences | 1 |
Electronics | 2 |
General | 2 |
Geology | 1 |
Information technology | 1 |
Multimedia | 1 |
Space | 2 |
Technology | 2 |
Telecommunications | 1 |