This paper briefly describes the new shaft type scrap preheating system called UL BA developed by Japanese Nippon Steel Corporation.
文章简要介绍了日本新日铁开发的新型竖炉式废钢预热系统，即：UL-BA方式预热装置。
Preheating scrap by flue gases of electric furnace is an energy-saving technology, which has been developed and applied by foreign country for a long time.
电炉烟气预热废钢是一项节能降耗的新技术，国外已开发和使用。
The traditional ballast starting, added high-pressure filament material suddenly without preheating, will take serious sputter and loss, and make the light turn black and scrap ahead of time.
传统的镇流器启动，未经预热突加高压灯丝材料会发生严重溅射损耗，导致灯管提前发黑报废。
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