Cooling gas cutting is one of the important branches of green cutting technology, and the precondition of research and application of this technology is to supply cold gas to the cutting zone.

低温冷风切削是绿色切削加工技术中的一个重要分支，而向切削区供给低温冷风是研究和应用该项技术的前提。

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The rational choice of the cutter is one of the important ways to improve green cutting process.

刀具的合理选择是提高切削加工的绿色化程度的重要途径之一。

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The harm of traditional metal cutting fluids is described. The requirement for the development of the green cutting fluids was introduced.

论述了传统的切削液存在诸多危害，介绍了绿色切削液开发的基本要求。

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Under proposed changes to the route between Amersham and Wendover in Buckinghamshire Mr Hammond said there were opportunities for a "green bridge" over the cutting and a longer "green tunnel".

BBC: Changes to planned high-speed rail route unveiled

Burns said the company will be looking to reduce their operating expenditures, cutting their green fields explorations programs and reducing their overheads.

FORBES: Pan American Silver To Cut Costs In Current Metals Price Environment: CEO

So a group of heavily-forested countries have been lobbying to get paid for not cutting down their green canopies.

ECONOMIST: Climate change