炼钢熔炉一种通过酸性转炉法将生铁练成钢的设备 A furnace in which pig iron is converted into steel by the Bessemer process.
挡板，调节风门一种可调节的薄片，如在熔炉或火炉的通气管中的，用来控制气流 An adjustable plate, as in the flue of a furnace or stove, for controlling the draft.
指示器，记录器监控发动机、熔炉、电网、水库或其它系统运作状况的仪器；指示板或仪表盘 An instrument used to monitor the operation or condition of an engine, a furnace, an electrical network, a reservoir, or another physical system; a meter or gauge.
