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		一种基于超声共振谱的低Q值材料共振频率提取方法1)
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			A RESONANCE FREQUENCY EXTRACTION METHOD FROM LOW Q-FACTOR MATERIALS BASED ON RESONANT ULTRASOUND SPECTROSCOPY1)
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| 图 2. 超声共振测量实验平台 | 
| Fig. 2. Experiment platform of resonant ultrasound spectroscopy | 
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