Rigid connection between 6 and CNC high speed drilling center machine spindle system of machine spindle, the rigidity of bearing and gear performance and the spindle and the handle.

cnc高速钻攻中心机器的主轴系统等机器主轴自身的刚性、轴承及齿轮的性能以及主轴和刀柄之间的连接刚性。

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Lisa: Yes, of course. A machining center can perform various functions, such as milling, boring, drilling, tapping and reaming.

丽莎：是的，当然。加工中心能执行各种功能，比如铣、镗、钻、攻螺纹和铰削。

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The latter has a cylindrical groove at its center, thus generating a solid core, which guides the tool as it proceeds during the drilling operation.

后者在其中心有一圆柱形沟槽，这样能生成整体芯在钻孔作业过程中引导钻头。

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Executive Director David Landecker of the local Environmental Defense Center strongly opposes McCain's push for renewed oil drilling, although he does give the senator some credit for making his pitch where he did.

NPR: Candidates' Plans to Combat High Energy Costs