arc heating

例句：

1. 1. The furnace usesarc heating to melt the metal.
   这个炉子使用弧热来熔化金属。
2. 2. Duringthe welding process, thearc heating is used to create a strongbond between the pieces.
   在焊接过程中，弧热被用来在零件之间产生牢固的连接。
3. 3. The arc heating methodis more energy-efficient than traditional methods.
   弧热方法比传统方法更节能。