mobile-hearth furnace

例句：

1. 1. The mobile-hearthfurnace is used for melting metalsand casting them into molds.
   移动式炉子用于熔化金属并将其铸造成模具。
2. 2. The engineer designed the mobile-hearth furnace to improve efficiency in the manufacturingprocess.
   工程师设计了移动式炉子以提高制造过程的效率。
3. 3. The mobile-hearth furnace was a critical component of theindustrial revolution, allowing for mass production ofgoods.
   移动式炉子是工业革命的关键组成部分，允许大规模生产商品。