... propionyl nitrate硝酸丙酰 proprietary environmental protection technology有产权的环境保护技术 proprietary formulation有产权的配方；有产权的配制方法 ...
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non-proprietary environmental protection technology 无产权环境保护技术
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The proprietary energy-saving running module technology can effectively reduce the energy saving energy and environmental protection, to reduce the operating cost.
专有的可节能运行模块技术可有效降低运行能耗，达到节能环保降低运行成本的目的。
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