dilatation
noun[U]
medicalspecializeduk/ˌdɪl.əˈteɪ.ʃən/us/ˌdɪl.əˈteɪ.ʃən/theprocessofbecomingwideror moreopen, or theactof making something do this:
扩张,扩张术Dilatation ofbloodvesselsis alwaysassociatedwithincreasedbloodflowandincreasedbloodpressure.血管扩张总是跟血流量增加和血压升高有关联。
Balloon dilatation is asafeandeffectivetreatmentforpatientswithtighturethralstrictures.气囊扩张法是治疗尿道狭窄的一种安全有效的方法。