Is similar to the preceding method but gives you two additional parameters to specify visit options and how many directories deep into the file tree the traversal should go.

与前面的方法相似，但是它给出两个附加的参数来指定访问选项，以及遍历将访问文件树中的多少个目录。

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Real dislocation, the loss of all familiar external and internal parameters, is not glamorous or cool. It is an upheaval in the deep material of the self.

真正的错位感，真正的失去外在与内在的熟悉坐标，并不有多光荣或潇洒。它是自我内在的深层的巨变。

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This lays down a theoretical foundation for quick selection of right axial vibration drilling parameters and successful automatic machining of deep holes.

为快速选择合适的轴向振动钻削参数，实现深孔的顺利加工与自动化加工奠定了理论基础。

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