Specifies the number of seconds that the tcp ip network connection between the web server and the state server can be idle before the request is canceled 指定web服务器与状态服务器之间的tcp / ip网络连接可以处于空闲状态的时间（秒） ，超过此时间后，请求将被取消。
This voltage will be negative if the line is idle and alternate between that negative level and a positive level when data is sent with a magnitude of 5 to 15 volts 译为： “该引脚的电平，如果在总线空闲状态，其电压为负，而在数据发送状态，其电平则在5 15伏的正电平和负电平之间变化。 ” ？
When the distributor is not idle , the distributor quantum becomes irrelevant because the distributor checks for additional work items when it begins and completes its current work item 如果分发服务器处于非空闲状态，则分发服务器量程就是不相干的了，因为分发服务器在开始和完成当前工作项时要检查其他工作项。
Further , applications that experience a high degree of contention usually exhibit lower throughput , not only because more time is spent scheduling threads and less time doing actual work , but because cpus may remain idle when threads are blocked waiting for a lock 而且，在高度竞争环境下的应用程序表现出来的吞吐量通常会更低，这不仅是因为花在调度线程上的时间更多了，花在做实际工作上的时间更少了，而且当线程为了等待某一个锁而被阻塞时， cpu可能处于空闲状态。
A polling - based adaptive beamforming multiple access ( pb - abfma ) protocol is proposed . in pb - abfma , the simple and effective mechanism is used to guarantee the smart antennas to adapt the time - varying channel . the cap schedules packet transmissions based on the polling mechanism and dynamic tdma 该协议中采用简单、有效的机制保证智能天线快速、准确地适应时变信道，以动态tdma方式为各节点安排发送时隙，采用微时隙为处于空闲状态的用户保持连接以降低接入时延，该协议可工作于异步网络中，具有很强的实用性。
