The deformation characteristics of non free cutting (NFC) are experimentally studied with the chip cross section geometry, the deformation configuration and the cutting ratio.

通过对切屑截面几何、变形状态及切削比的实验分析，研究了非自由切削的变形特征。

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The analysis indicates that tapping torque increases as net cutting time ratio increases, where net cutting time ratio influences the tapping torque more significantly.

结果表明，攻丝扭矩随净切削时间比的增加而增大，且对攻丝扭矩的影响最显著。

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The quality of cutting is directly related with power consumption, processing cost, ratio of utilization of bamboo and the quality of finished products.

切削加工直接关系到动力消耗、加工成本、竹材利用率和制成品的质量。

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The figures in the two efforts reveal an anomaly: While Cambodia has succeeded in dramatically cutting the ratio of children who die each year, the maternal mortality figure has not dropped in a decade.

VOA: standard.2009.11.10

Discount broker Charles Schwab announced this morning that it is cutting the annual expense ratio on six of its eight proprietary exchange traded funds.

FORBES: Schwab ETFs Get Even Cheaper

And at the same time, it will be shrinking its investment bank, thus cutting the denominator in the ratio, its loans and investments.

BBC: Who can boss the banks?