The relation between rigidity and processing accuracy is discussed and a conclusion is drawn to enhance the net rigidity of the stiff shaft.

根据轴端挠度计算公式讨论了刚度与被加工孔精度之间的关系，得出了几个结论，提出了提高主轴静刚度的途径。

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If the feather is too stiff to wrap around the shaft of the arrow, you can soften it by steaming it.

如果因为羽毛太硬而无法缠绕在箭轴上，你可以用蒸汽使羽毛软化。

youdao

If the feather is too stiff to wrap around the shaft of the arrow, you can soften it by steaming it.

如果因为羽毛太硬而无法缠绕在箭轴上，你可以用蒸汽使羽毛软化。

youdao