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Test of Focusing on Phased Array Ultrasonic Without Using Wedge
LIU Xiao-Rui1;QIANG Tian-Peng2;WU Guan-Hua1;SUN Zhong-Bo3;XIAO Xiong4;ZHENG Kai2;Nanchang Hangkong University; Nanchang 330063;China;2.Jiangsu Province Special Equipment Safety Supervision Inspection Institute; Nanjing 210003;China;3.Tianjin Chenxinda Metal-Testing Technology Co Ltd;Tianjin 300384;China; 4.Jiangsu Zhongtechuangye Equipment Inspection Co Ltd;Nanjing 210014;China)
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