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| 柱环节链; 日字环节链 | |||
| 有挡链环; 高节链节; 日字形链节 | |||
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| 日字环节 | |||
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stud link : 11 phrases in 5 subjects |
| Architecture | 1 |
| Industry | 1 |
| Nautical | 1 |
| Shipbuilding | 1 |
| Technology | 7 |
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