名词
中文翻译：圆筒形的
同义词：
['rotary', 'rotarymill']
例句：
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1. The gyratory ball-mill is a commonmachine used for grinding materials.
回转式球磨机是一种常用的机器，用于研磨材料。
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2. In thegyratory ball-mill, the material is ground by therotation of the cylinder.
在回转式球磨机中，物料通过筒体的旋转进行研磨。
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3. The gyratory ball-mill is an essential tool in themetallurgical industry for grinding andmixing various materials.
回转式球磨机是冶金工业中研磨和混合各种材料的重要工具。