hot-wall tube furnace

例句：

1. 1.The hot-wall tube furnace is used for heating and drying materials.
   热壁管炉用于加热和干燥材料。
2. 2. The hot-wall tube furnace is a popular choice for industrial applications.
   热壁管炉是工业应用中受欢迎的选择。
3. 3.The hot-wall tube furnace is designed to provide efficient heat transfer.
   热壁管炉设计用于提供高效的热量传递。