本实用新型由于有效降低燃煤量，所以煤烟的排放量相对减少，降低环境污染。
By effectively reducing coal consumption, the utility model can relatively reduce the discharge of coal smoke with less environmental pollutions.
本实用新型由于有效降低燃煤量，所以煤烟的排放量相对减少，降低环境污染。
By effectively reducing coal consumption, the utility model can relatively reduce the discharge of coal smoke with less environmental pollutions.
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