It was investigated that the short-cut process of producing high quality iron castings by duplex melting with blast furnace and medium frequency induction furnace.
分析了高炉 中频炉双联熔炼短流程生产工艺的特点,采用液态金属状态测评系统研究短流程铁液状态。
A new-style vane steering pump based on twin pump is put forward in this thesis to reduce the energy loss and improve the efficiency of power steering pump.
本文提出了一种新型的采用双联泵结构的叶片式转向泵,目的在于降低转向泵的能耗,提高其工作效率。