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| 主链; 母链 | |||
| 主链结构 | |||
| 主链〈聚合物〉 | |||
| 主链条 | |||
| 主锚链; 主链索; 主链节; 主键 | |||
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main chain : 13 phrases in 7 subjects |
| Chemistry | 1 |
| Electronics | 2 |
| Genetics | 1 |
| Plastics | 1 |
| Polymers | 5 |
| Space | 2 |
| Technology | 1 |
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