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，這個日期指的是産品未開封的狀態。
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，日本有三顆信息採集衛星在軌道運行，這顆最新的衛星將替代其中已經過期的一顆。
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.
如果容器的液躰産品過了安全使用期，按所提供的制造商的存儲建議和処理方法処理。