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supersonic sounding | |||
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supersonic sounding |
超 声探测: 52 phrases in 13 subjects |
Aviation | 1 |
Business | 10 |
Electronics | 5 |
Engineering geology | 4 |
General | 2 |
Metallurgy | 2 |
Oil / petroleum | 5 |
Plastics | 1 |
Shipbuilding | 1 |
Space | 3 |
Surgery | 1 |
Technology | 16 |
Wind Energy | 1 |