Black smoke with high ash content and concomitant low efficiency are long-term unsolved problems of AZD model spreader-stoker boilers.
AZD型抛煤机锅炉烟气排尘浓度高，冒黑烟，效率低是长期来没有解决的难题。
Black smoke with high ash content and concomitant low efficiency are long-term unsolved problems of AZD model spreader-stoker boilers.
AZD型抛煤机锅炉烟气排尘浓度高，冒黑烟，效率低是长期来没有解决的难题。
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