| 摘要 |
Storage time of a perishable item in a perishable item storage system is tracked using a set of reusable labels with distinguishing features that associate each label with a distinct time unit. The distinguishing features are used to group labels, each group being associated with one of the time units. The labels permit a user to readily determine by visual inspection a time when a labeled item was added to the perishable item storage system. The time units may be days of the week.
|
