last transition mesial point下降半值点
first transition percent point上升百分率点
first transition mesial point上升半值点
transition-point fluctuation转捩点脉动
transition sampling point过渡
last transition percent point下降百分率点
transition-point转变点
transition n point边渡点
phase transition critical point相变临界点
N（名词） the point at which a transition of physical properties takes place, such as the point at which laminar flow changes to turbulent flow 临界点