Mica mats are special - shaped parts made of hard plate like and tubular insulating materials.

云母垫是用硬质云母板或管状绝缘材料加工而成的各种异形零件.

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It's a new method to grind special - shaped parts. Its development and study are valuable in practice.

采用异形涂附磨具是解决难磨削复杂零件的磨削加工新方法,磨具的开发和研究具有实用价值.

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