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日本电站锅炉已逐步向高温高压大容量发展,并已采用了超临界压力直流锅炉。但在亚临界压力下采用直流锅炉也快速而广泛地发展着。表1示出日立公司的大型直流锅炉产品。
Japan’s power plant boilers have been gradually high-temperature high-pressure development, and has adopted a supercritical pressure DC boilers. However, the use of DC boilers under subcritical pressure has also rapidly and widely been developed. Table 1 shows Hitachi’s large-scale DC boiler products.