open-hearth furnace

ریشه

Derived from the terms 'open-hearth', referring to the open flame, and 'furnace', a device used for high-temperature heating.

مثال

• The open-hearth furnace was once the dominant steelmaking technology.
• Open-hearth furnaces were replaced by basic oxygen furnaces in the 1970s.
• The open-hearth furnace is a large, shallow hearth that allows a layer of slag to form.

ترکیب‌های رایج

Operate an open-hearth furnace Replace the open-hearth furnace Use an open-hearth furnace