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| 钢板弹簧U 形[骑马]螺栓的鞍座 | |||
| 弹簧鞍座 | |||
| spring saddle: 5 phrases in 5 subjects |
| Cycle sport | 1 |
| Cycling other than sport | 1 |
| Drilling | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
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