timern.计时器；定时器；计时员timeremindern.时间提醒器timer object计时器对象timer number计数器数码timer button计时器按钮timer access定时器访问, 时钟访问timer pickup计时器启动timer keeper记时员timer cutoff定时器控制停车timer control计时器控制,时钟控制timer circuit定时电路