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ball-mill英英字典_ball-mill剑桥英语解释_ball-mill柯林斯英文解释_果味酸柯林斯词典
果味酸柯林斯词典

ball-mill

B 开头单词

柯林斯词典

    ball mill

  • 1. N a horizontal cylinder or cone in which a substance, such as a mineral, is ground by rotation with steel or ceramic balls 球磨機[engineering]

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