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multiple- layer : 21 phrases in 13 subjects |
Aviation | 1 |
Chromatography | 1 |
Construction | 1 |
Genetics | 1 |
Geophysics | 3 |
Household appliances | 1 |
Medical appliances | 1 |
Microelectronics | 1 |
Military | 2 |
Nanotechnology | 1 |
Technology | 5 |
Telecommunications | 2 |
Thermal engineering | 1 |