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。
Importance of electrode shell making and jointing to sealed calcium carbide furnace is introduced.
叙述了电极壳的制作和对接对密闭型电石炉正常运行的重要性。
Furnace steel and steel plates were welded body constituted by the shell, and its both ends with heat-resistant material made of stainless steel pneumatic door.
加热炉体由型钢和钢板焊接构成外壳，它的两端部装有耐热不锈钢材制成的气动炉门。
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