锻造钢锭多采用热锭加热，其特点是在恒温炉中一段加热和在变温炉中两段或三段加热方式。
Hot ingots are often heated in forging furnaces, the feature of which is one-stage type in a constant temperature furnace and two-or three stage type in a temperature-variable furnace.
为了仿真评估电弧炉引起的闪变严重度，对闪变仿真法及其在电弧炉供电系统中的应用进行了研究。
In order to assess the flicker caused by electric arc furnace, the simulation method to assess flicker and its application in electric arc furnace power system was studied.
介绍了大型合成氨厂低变炉更换催化剂的过程；论述了催化剂的选型要求和装填方法；阐明了催化剂还原过程中从还原前升温到还原初期、主期及末期的操作步骤和要求。
The process to replace the catalyst of shifting furnace was introduced for large-sized ammonia synthesis plant; the requirements of type selection and filling method for catalyst were discussed.
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