求翻译：本项目所推广的变频器项目，适用我国目前煤矿、矿山、钢铁、电力等行业的节能改造及相关应用，国内尚无成熟的该项技术产品。是什么意思？

The project promoted by the inverter project, applicable to China's current coal, mining, steel, electricity and other energy-saving industry and related applications, there is no mature this technology product.

This project promoted the Project Converter application, and my current coal mine, the mining, steel, and electric power industries, energy-efficient remodeling and related applications, there are no maturity of the technology products.

This project promotes the frequency changer project, is suitable our country profession and so on coal mine, mine, steel and iron, electric power energy conservation transforms at present and is connected the application, domestic still not mature this technical product.

This project promoted by frequency converter project, apply in China coal mine, industries such as mining, steel, power energy saving and related applications, at present no maturation of the technology products.

正在翻译，请等待...