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computer microfilm | |||
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computer output microfilm |
计算机缩微 胶片 : 27 phrases in 12 subjects |
Agriculture | 3 |
Aviation | 1 |
Data processing | 2 |
Earth sciences | 1 |
Electronics | 5 |
General | 2 |
Geology | 1 |
Information technology | 3 |
Multimedia | 2 |
Space | 2 |
Technology | 3 |
Telecommunications | 2 |