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		含水条件下单晶Cu的应力松弛及弹性恢复
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			Stress Relaxation and Elastic Recovery of Monocrystalline Cu Under Water Environment
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| 图4. 不同水环境下单晶Cu的纳米压入区域最邻近Cu原子间距变化 | 
| Fig.4. The nearest interatomic separation among Cu atoms in indenting region under different water environments | 
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