The automatic control level and heat efficient for coal heating boiler is lower for most of domestic boiler so far.
目前国内大部分燃煤采暖用锅炉房自动化控制水平普遍较低，热效率也不高。
The automatic control level and heat efficient for coal heating boiler is lower for most of domestic boiler so far.
目前国内大部分燃煤采暖用锅炉房自动化控制水平普遍较低，热效率也不高。
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