oil-burning boiler oil-fired boiler的意思|示意

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燃油锅炉

燃油锅炉 ... oil-burning boiler oil-fired boiler 燃油锅炉 oil burning auxiliary boiler 燃油辅助锅炉 ; 燃油辅锅炉 oil burning donkey boiler 燃油辅锅炉 ...