annular furnace

A sample of multi-cladding high concentration silica host erbium doped fiber with bismuth-gallium-aluminum co-doped is fabricated by MCVD process with a type of annular graphite heater furnace.

采用环形石墨炉加热的改进化学汽相沉积（MCVD）车床制作出了多包层铋镓铝共掺的石英基高浓度掺铒光纤，并对其几何参数和吸收谱进行测试和分析。

Big Annular Tempering Furnace

大型环形回火炉

This paper introduces the circumstances of the debugging and design for annular tempering furnace in the production line of the wheel.

介绍了车轮生产线上环型回火炉的设计和调试运行情况，推出了大型环形回火炉新炉型。

Experimental research on the thermal state of the round steel billet heated in annular furnace

环形炉圆钢坯加热过程热态试验研究

This annular tempering furnace has the structure characteristic of the double hearth and the technic trait of the better temperature uniformity.

具有双层炉膛的结构特点和炉温均匀性好（±10℃）的技术特性。