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1. ThePfund hardness tester is usedto measure the hardness of materials.
普朗克硬度测试仪用于测量材料的硬度。
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2.The Pfund hardness tester wasinvented by a German scientist named Pfund.
普朗克硬度测试仪是由德国科学家普朗克发明的。
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3. ThePfund hardness tester is widely used in industryfor quality control.
普朗克硬度测试仪在工业中被广泛使用,用于质量控制。