在切削实验中，可对切屑厚度、刀具磨损及螺纹等的形貌进行观察并测量其尺寸。

In cutting experiments, it can be observed and measured that the chip thickness, the tool wear, the screw thread teeth, and so on.

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对内螺纹铜管尺寸优化、铝箔厚度减薄前后的空调热交换器进行了单体性能实验和整机性能实验对比。

The performance experiments on separate heat exchanges and integrated air conditioners before and after optimizing the inner grooved copper tube and reducing the thickness of aluminum foil are made.

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此外，他们认为，对于攻丝存在一个临界切削厚度(螺纹深度)值，在临界切削厚度的范围内，攻丝能降低攻丝扭矩。

In addition, they believe, for tapping there exists a critical cutting thickness (thread depth) value of the critical cutting thickness within the tapping can reduce the tapping torque.

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