The shell of the trolley type resistance furnace is cylindrical, and the inside is a verticalshaft furnace made of refractory bricks.
台车式电阻炉的外壳呈圆筒状，内部是由耐火砖砌成的竖井式炉膛，所以台车式电阻炉因此而得名。
2
The Horizontal Type Invert Umbrella Surface Aerator is a vertical-shaft and low-speed aerator. It can be used in the biochemical treatment of municipal sewage and industrial wastewater.
卧式倒伞型表面曝气机为垂直轴低速曝气机，可广泛用于城市污水和各种工业废水的生化处理。
3
The paper deals with the subject of wear-resistant of sheathing board using on new-type mining vertical-shaft crusher which is used at the critical conditions of high speed scouring abrasion.