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| expansion installation | |||
| retractor device | |||
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伸 缩 装置 : 25 phrases in 12 subjects |
| Agriculture | 1 |
| Bridge construction | 3 |
| Drilling | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 1 |
| Metallurgy | 2 |
| Nautical | 3 |
| Rail transport | 1 |
| Shipbuilding | 2 |
| Technology | 8 |
| Telecommunications | 1 |
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