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| 锁定电磁铁 | |||
| 吸持磁铁; 锁定磁铁 | |||
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| 锁定磁铁 | |||
| locking magnet: 8 phrases in 5 subjects |
| Automobiles | 1 |
| Earth sciences | 1 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Technology | 4 |
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