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		非连续数字图像相关方法在裂纹重构中的应用 1)
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			APPLICATION OF DISCONTINUOUS DIGITAL IMAGE CORRELATION IN CRACK RECONSTRUCTION 1)
			 
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		 图8. 试验过程中各图像的平均绝对偏差和裂纹长度  | 
	
Fig. 8. Average absolute errors and crack length of each image during the test  | 
	
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