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| 贝西克纤维 (聚碳酸酯纤维); 原纤维 | |||
| 贝西克纤维; 聚碳酸酯纤维 | |||
| basic fiber: 7 phrases in 3 subjects |
| Polymers | 2 |
| Technology | 1 |
| Textile industry | 4 |
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