These functions permit the creation of normal, batch, or real-time tasks (first in, first out [FIFO] or round-robin), with a specific priority or nice level.

这些函数允许创建正常、批处理或实时任务（先入，先出 [FIFO] 或循环），具有特定的优先级或高等级。

youdao

Linux scheduling and locking involve managing first in, first out (FIFO) queues.

Linux调度和锁定用来管理先进先出(FIFO)队列。

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The BlockingQueue interface states that it is a Queue, meaning that its items are stored in first in, first out (FIFO) order.

BlockingQueue接口表示它是一个Queue，意思是它的项以先入先出(FIFO)顺序存储。

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And as you know, there is a convergence here in terms of reporting requirements towards FIFO -- first in, first out -- as opposed to last in, last out.

WHITEHOUSE: Press Briefing