horseshoe flame furnace

例句：

1. 1.The horseshoe flame furnace is used for melting metals.
   马蹄形火焰炉用于熔化金属。
2. 2.This horseshoe flame furnace has a high efficiency and low energy consumption.
   这个马蹄形火焰炉效率高，能耗低。
3. 3.The horseshoe flame furnace is easy to operate and maintain.
   马蹄形火焰炉易于操作和维护。