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| explosive core; gunpowder core; middle powder | |||
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药芯 : 22 phrases in 9 subjects |
| Chemistry | 1 |
| Electric machinery | 1 |
| Explosives and Explosive Ordnance Disposal | 6 |
| Metallurgy | 4 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Rail transport | 1 |
| Space | 4 |
| Technology | 2 |
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