preemptive schedule

• 抢先调度

preemptive schedule的用法和样例：

例句

1. What is the difference between preemptive scheduling and time slicing?
   抢先调度与分时调度有何不同？
2. Under preemptive scheduling, the highest priority task executes until it enters the waiting or dead states or a higher priority task comes into existence.
   采用抢先调度方式时，具有最高优先级的任务先执行直到它进入等待或僵死状态，或者是有更高优先级的任务产生。