... lower class 下类 lower cone 下锥体 lower control limit 控制下限 ...
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tail cone lower door 尾锥下舱门
cone lower bound 锥下界
cone lower limit 锥下极限
greatest cone lower bound 最大锥下界
·2,447,543篇论文数据，部分数据来源于NoteExpress
This article discusses the wear pattern of the lower cone of a hydroclone and the causes of the drop of its separating efficiency.
论述了水力旋流器下锥筒的磨损规律及其分离效率下降的原因；
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