名词
中文翻译：滚筒式分级机
同义词：
['roller grader', 'roll-off grader例句：1. The roller grader is used to separate the materials by size.（滚筒式分级机用于通过大小分离材料。）']
例句：
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1. The roller grader is used to separate the materials by size.
滚筒式分级机用于通过大小分离材料。
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2.Roller graders are commonly used in agriculture to sort grains.
滚筒式分级机在农业中常用于分类谷物。
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3. The roller grader was designed to improve the efficiency of the material handling process.
滚筒式分级机被设计来提高物料处理过程的效率。