Ash layers above normal for a long time, ash is not seasonable, missed a thoroughly furnace, balance firmness and total height beyond the normal range.
灰层长时间高出正常值，除灰不及时，没有按时透炉，均衡松紧度和总层高度超出正常范围。
Ash layers above normal for a long time, ash is not seasonable, missed a thoroughly furnace, balance firmness and total height beyond the normal range.
灰层长时间高出正常值，除灰不及时，没有按时透炉，均衡松紧度和总层高度超出正常范围。
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