名词
中文翻译：中心研磨
同义词：
['central grinding', 'central milling']
例句：
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1. The center grinding machine is used to grind the metal parts.
中心研磨机用于磨削金属部件。
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2. The center grinding wheel is essential for precision machining.
中心研磨轮对于精密加工至关重要。
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3. During the manufacturing process, the center grinding operation is crucial for ensuring quality.
在制造过程中，中心研磨操作对于确保质量至关重要。