But in practical tasks, system only limited priority levels could be used.

当实时调度应用于实际的任务系统时，仅能使用有限的优先级数量。

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SCHED_FIFO differs from the SCHED_OTHER policy by providing 99 priority levels.

SCHED_FIFO 与 SCHED_OTHER 策略的区别在于前者提供了 99 个优先级级别。

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You can further organize your to-do tasks with priority levels, locations, and tags.

你可以进一步通过优先级，地址，和标签来组织你的日程。

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In 1979 3M revamped its technology--sold under the Opticom brand--to allow it to recognize two different priority levels: a high level for emergency vehicles, which could force traffic lights to change immediately and a lower level for transit vehicles, which could hold off changing the light entirely if changing the light to green would snarl traffic.

FORBES: Magazine Article

For example, green tech is a strategic priority at all levels of the Chinese government.

FORBES: Times Have Changed: No More "China Produces and America Consumes"

"This is the number one priority at the highest levels, " says Thomas Lesinski, president of Paramount Home Entertainment.

FORBES: Magazine Article