| 摘要 |
Various embodiments of indicators, their use, and their construction are described. An indicator may include a plurality of bistable display portions. The plurality of bistable display portions may be changed from a first state to a second state to indicate the passage of a predetermined time period. The plurality of bistable portions may also be changed to a third state to indicate an amount of time past the predetermined time period. An indicator may also include a plurality of event labels arranged to form an event flow path, a plurality of event inputs, and a plurality of bistable displays which may be controlled to indicate an event status. |
