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图4 (A) 单梯度材料的EPMA线扫结果[26]. 经许可转载,版权所有2012 Nature Publishing Group. (B) 双梯度材料的EPMA的测试结果[52]. 经许可转载, 版权所有2015 Wiley-VCH.

Fig. 4 (A) EPMA line scan data for the single-sloped full concentration gradient materials[26]. Reprinted with permission, Copyright 2012 Nature Publishing Group. (B) EPMA line scan data for the two-sloped full concentration gradient materials[52]. Reprinted with permission, Copyright 2015 Wiley-VCH.