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optical pattern |
光 模式 : 53 phrases in 13 subjects |
Advertising | 1 |
Agriculture | 3 |
Aviation | 2 |
Computer networks | 1 |
Earth sciences | 1 |
Electronics | 15 |
Information technology | 5 |
Metallurgy | 1 |
Multimedia | 1 |
Nautical | 1 |
Space | 4 |
Technology | 15 |
Telecommunications | 3 |