Therefore the "servant class" has not remained a fixed group.
因此,仆人阶级并非一个固定不变的团体。
Making an appointment conforms the rule that early book early play, and strictly forbid transferring the fixed group.
预约遵循先订先得原则,严禁擅自调动已订组。
What we usually want is a work queue combined with a fixed group of worker threads, which USES wait and notify to signal waiting threads that new work has arrived.
我们通常想要的是同一组固定的工作线程相结合的工作队列,它使用wait和notify来通知等待线程新的工作已经到达了。
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