This paper introduces the structure and economic benefit of the electric boiler heat reservoir, points out the obvious economic and social benefit of this technology.
介绍了电锅炉蓄热装置的结构和经济利益，指出了该技术具有明显的经济效益和社会效益。
Introduce the structure and the technology of ring structure iron cored transformer. Analyzed the social influence and economy effect of ring structure iron cored transformer.
介绍了环型铁芯变压器的结构特点和技术优势，分析了环型铁芯变压器在生产、应用过程中取得的巨大的经济效益和社会效益。
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