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		光棒废料改性环氧树脂复合材料的制备和性能
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			Preparation and Properties of Epoxy Resin Composites Incorporated with Optical Fiber Preform Waste
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| 图7. 复合材料的断裂伸长率与粉末含量的关系 | 
| Fig.7. Relationship between elongation at break and powder content of composites | 
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