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| subsonic speed; subsonic | |||
| subsonic velocity | |||
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亚声速 : 64 phrases in 9 subjects |
| Aviation | 15 |
| Compressors | 1 |
| Construction | 1 |
| Earth sciences | 1 |
| General | 3 |
| Hydroelectric power stations | 1 |
| Nautical | 1 |
| Space | 27 |
| Technology | 14 |
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