月经停止
The period marked by the natural and permanent cessation of menstruation, occurring usually between the ages of45and55.───绝经期月经自然性永久停止的时期，常常发生于45岁至55岁之间
alternation of generations───[生物]世代交替
equation of state───[物化][自]状态方程式
equation of states───[物化][自]状态方程式
cessation of violence───停止暴力
clear demonstration───清晰的演示
constant of integration───[数]积分常数
context of situation───语言环境；情景上下文
heat of condensation───[热]冷凝热；[热]凝结热
mass demonstration───大规模的游行示威