你船空高是多少？
The invention discloses a unilateral air draft process of kiln process chain grate preheating section for making oxidized pellet.
本发明公开了生产氧化球团矿链篦机――回转窑法链篦机预热段的单边抽风工艺。
The two impellers are arranged at the lower end of the axle sleeve to ensure moderate air-draft amount.
两片叶轮装在轴套下端，确保引风量适中。
The two impellers are arranged at the lower end of the axle sleeve to ensure moderate air-draft amount.
两片叶轮装在轴套下端，确保引风量适中。
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