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dot-line : 26 phrases in 13 subjects |
Architecture | 1 |
Aviation | 1 |
Chemistry | 1 |
Construction | 1 |
Desert science | 1 |
Drilling | 2 |
Economy | 2 |
Electronics | 1 |
General | 2 |
Metallurgy | 2 |
Oil / petroleum | 2 |
Technology | 9 |
Telecommunications | 1 |