multi layer and concentric holes
multi layer and concentric holes
多层同心孔
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The method of decomposition and machinability evaluation used for multi-layer and concentric holes of complex box-shaped parts is discussed and it has been applied to CAPP-NC system.
针对复杂箱体多层同轴孔的分解和加工性判断进行了研究，并应用于CAPP - NC系统中。
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