hours run

• 操作小时

hours run的用法和样例：

例句

1. We demonstrate that the packaged mono-layer PBO LED reduced its demise from water and oxygen.Device lifetime increased from 1 hour to several hundred hours.
   我们经实验证实了元件经过封装后确实能减缓水气与氧气破坏的速度，将原本至多一小时的操作寿命，提升到数百小时。