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| energy of recoil | |||
| 弹 回能: 20 phrases in 9 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| General | 1 |
| Metallurgy | 3 |
| Plastics | 2 |
| Space | 1 |
| Technology | 8 |
| Telecommunications | 1 |
| Textile industry | 2 |
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