(noun.) the process of becoming obsolete; falling into disuse or becoming out of date; 'a policy of planned obsolescence'.
整理:康拉德
双语例句
While the frictional appliance is still employed in medicine, it ranks with the flint axe and the tinder-box in industrial obsolescence. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.