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acoustic spectrum |
声普 : 74 phrases in 18 subjects |
Aviation | 5 |
China | 1 |
Desert science | 1 |
Earth sciences | 10 |
Electronics | 2 |
Fishery fishing industry | 1 |
Latin | 1 |
Medical appliances | 1 |
Navigation | 1 |
Nursing | 3 |
Oil / petroleum | 2 |
Plastic surgery | 1 |
Reproductive biology | 1 |
Shipbuilding | 2 |
Space | 7 |
Surgery | 3 |
Technology | 31 |
Wind Energy | 1 |