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| minute gun (船舶遇险时每分钟发一次的号炮) | |||
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分炮 : 24 phrases in 7 subjects |
| Architecture | 1 |
| Explosives and Explosive Ordnance Disposal | 15 |
| General | 2 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 3 |
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