dilationn.扩张；扩大部分=dilatation.dilation solid model实体模型Dilation of bronchus支气管扩张术Dilational elasticity扩张弹性dilational transition膨胀转变Dilation of achalasia贲门失弛缓症扩张术Dilation of esophagus食管扩张术dilation of the pupil瞳孔的扩大dilation and softening剪胀软化dilation and curettage扩张(宫颈)与刮(宫术)dilation transformation膨胀变换