hearthn.炉床;灶台;炉边
hearth casing炉缸外壳,炉缸护板
hearth cinder炉灰,炉渣
hearth office卫生处
hearth jacket炉缸外壳
hearth roaster床式焙烧炉
hearth trimmer炉前搁栅
hearth erosion炉缸侵蚀
hearth cincder熟铁渣
hearth furnace床式反射炉
hearth building医院