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1·An useful analysis method for diagnosis of breakdown, vib- rarion and noise in metal cutting machine tools is offered.

为金属切削机床的振动与噪声分析和故障诊断提供了进一步的分析方法。

2·Virtual multidimensional internal bonds (VMIB) was a multiscale mechanical model based on the Virtual internal bond (VIB) theory.

多维虚内键(VMIB)模型是基于虚内键(VIB)理论的一种多尺度力学模型。

3·The article analizes the influence of vib-displacement between the tool and workpiece on foe surface finish of the workpiece precisionally turned by a single point tool.

试验结果表明：相对位移对表面光洁度的影响是线性”的，不仅与振动幅值有关而且与振动频率及主轴转速有关。