详细解释:【计】 主调度程序, 主调度例行程序
例句：
A queue of new messages(or a group) within a system that are awaiting processing. The main scheduling routine will scan them along with other queues and order them into processing in order.在系统中等待处理的一组或一队列新信息，主调度程序对该队列及其它队列进行扫描，使之顺序进入处理状态。