长门号在1936年进行了大规模的改装，更换烧煤锅炉为新式重油锅炉。增加装甲和防空火炮。
She underwent a major refit in 1936, removing her coal-burning boilers and upgrading her armour and anti-aircraft guns.
每艘船都是由几台烧煤的锅炉提供动力，而甲板下的船员不辞辛苦地维持这些锅炉的运行。
Each ship was coal-powered by several boilers constantly kept running by exhausted crews below deck.
分析煤泥的特点，结合循环流化床技术的特性，指出纯烧煤泥存在的问题和循环流化床锅炉的解决对策。
This article analyzes the characteristics of mud coal and circulating fluidized bed . Then it points out the technics of coal-mud circulating fluidized bed boiler.
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