The sonic wave sending technique of early air cutting detecting is an advanced one.

声波气侵早期检测方法是一种先进的方法。

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The influence of air cutting angle and air cutting time to chip breakage is studied quantitatively. The correctness of air cutting theory is verified by the experiments.

定量分析了间断切削过程中的空切角度、空切时间对断屑的影响，并通过试验验证了用空切理论分析断屑的正确性。

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Cutting out paper towels would save trees, water, air and our money.

不再使用纸巾能节约树木、水、空气和金钱。

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But there was little to tell. The sound of a bullet cutting through the air.

VOA: special.2009.12.12

America West eliminated 2, 000 jobs, while American Trans Air is cutting 1, 500 employees.

CNN: Airlines reeling, laying off thousands

The researchers were also able to see a rise in temperatures after 1970 - the consequence of clean air legislation cutting emissions of soot and sulphates.

BBC: Particles from fossil fuels 'affect the growth of corals'

Spray from a passing driver shot into his air intake, cutting his power and ending his chances.

WSJ: Snowmobile Riders Race Over Water on Minnesota Lakes