In this thesis, by combining laboratory research, field production and theoretical analyze we have studied superficial oxide treatment technology to YL112 aluminum alloy material.

本文通过理论分析，结合实验室研究与现场生产，对YL112铝合金材料表面氧化处理工艺进行了研究。

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Rocket sewage This nitrous oxide-powered rocket thruster designed at Stanford can also be used in a sewage treatment plant to reduce greenhouse gas emissions.

火箭污水处理系统。这个由斯坦福大学研究设计的以氧化氮为动力的火箭推进器，也可用于污水处理工厂以减少温室气体排放。

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Rocket Sewage This nitrous oxide-powered rocket thruster designed at Stanford can also be used in a sewage treatment plant to reduce greenhouse gas emissions. Stanford University.

火箭污水处理系统。这个由斯坦福大学研究设计的以氧化氮为动力的火箭推进器，也可用于污水处理工厂以减少温室气体排放。斯坦福大学。

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David Field, professor of neonatology at the University of Leicester, said the US findings did not give the green light for using nitric oxide treatment, but were useful pointers to further research.

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Rather than eliminate nitrogen oxide via a bulky chemical treatment system that even the EPA questioned initially, EGR would make the motor do all the work by piping exhaust gas back into the cylinders and burning it again a cleaner, cheaper, lower-maintenance solution, which would set Navistar ahead of the pack.

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The treatment, which is currently a three-step process involving zinc oxide, silica, and other materials, takes about a day.

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