但是，他琢磨这些金刚石的电气性能一定很重要。
But he gathered that it was the electrical properties of the diamonds that mattered.
金刚石磨盘是快速琢磨，修边，造型及修整混凝土，石材，石料的最有效工具，干湿磨均可。
Diamond cup wheels are the efficient tools for fast grinding, rough deburring and smooth shaping and finishing of concrete, stone, and masonry materials.
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