1·The shell of the trolley type resistance furnace is cylindrical, and the inside is a vertical shaft 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 temporary concrete lining guard wall method was used in excavating vertical shaft.
竖井开挖采用了临时混凝士衬砌护壁措施。
3·The paper reviews the design and construction of the long inclined shafts, the deep vertical shaft, the parallel adit and the access adit for the tunnel.
文章介绍了越岭隧道的长斜井、深竖井、平导、横洞的设计和施工情况。