限时器: interval timer; timer限时赛: curfew超过限时: timedout超限时间: overtime低限时间: minimum period分段限时: graded time step极限时限: time-limit通话限时器: call limiter无限时空: infinity限时测验: timed test限时淬火: time quenching限时电报: time specified telegram限时定单: time limit order限时订单: time order限时断路器: time-limit breaker限时继电器: time limit relay; time-limit relay限时考试: timed test限时控制: time limit control限时类型: real-time限时临界性: time criticality限时抢购: flash sale限时释放器: time release限时索命: past midnight限时替续器: time limit relay限声镜: acoustic limiter限时差错恢复: tler