材料流理论和材料生产的资源效率的翻译：Material flow and material resource efficiency of production 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Material flow theory and materials resource efficiency

Material flow and material resource efficiency of production

The material flows the theory and the material production resources efficiency

Material flow theory and material production of resource efficiency

Material flow and material resource efficiency of production