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中间封锁; 信息记录组〔区〕; 字组间隔; 字区 | |||
区组间; 批间 | |||
组间 | |||
信息记录组 | |||
块间 |
interblock : 20 phrases in 12 subjects |
Agriculture | 2 |
Air defense | 1 |
Business | 1 |
Computers | 1 |
Electronics | 4 |
Geophysics | 1 |
Information technology | 2 |
Oil / petroleum | 1 |
Space | 1 |
Statistics | 3 |
Technology | 2 |
Telecommunications | 1 |