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1.The engineer used a knife-edge scanning technique to detect the crack in the metal.
工程师使用一种刀锋扫描技术来检测金属中的裂纹。
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2. The scientist conducted a knife-edge scanning experiment to study the behavior of electrons.
科学家进行了一次刀锋扫描实验,以研究电子的行为。
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3.The police department adopted a knife-edge scanning system to improve its crime-fighting capabilities.
警方部门采用了一种刀锋扫描系统,以提高其打击犯罪的能力。