长期过量接触
Long-term excessively exposed
处理机时间片断过期
expiration of the processor time slice
第四周期过渡金属
Transition-metal of the 4th period
定检过期
periodic inspection overdue
二十五件过期食品
25 outdated items of food
飞机全生命周期过程
the all life-cycle process for aircraft
非周期过渡条件
aperiodic transitional condition