use-by date

基本解释

The use-by date refers to product that has not yet been opened.
需要指出的是，这个日期指的是产品未开封的状态。
Japan currently has three information-gathering satellites in orbit and the latest satellite will replace one of them which has passed its use-by date.
目前，日本有三颗信息采集卫星在轨道运行，这颗最新的卫星将替代其中已经过期的一颗。
blog.sina.com.cn
If the container for liquid products bears a "use-by" date, observe it. Follow the storage and handling instructions provided by the manufacturer.
如果容器的液体产品过了安全使用期，按所提供的制造商的存储建议和处理方法处理。