We can develope network task-task communication programs using DECnet application level interface, but the data transfer rate cant meet the requirements of many real-time applications due to the high-layer network software overhead.
虽然DECnet在应用层提供任务? 任务通讯功能,但由于网络软件各层的开销,数据传输率往往不能满足实时应用的要求。
参考来源 - 在DECnet数据链路级开发实时通讯程序 in C·2,447,543篇论文数据，部分数据来源于NoteExpress
这些卫星处在平稳旋转的地球上空，几乎可以对全球的所有地区进行稳定的扫描，因此能很好地完成气象观察、通讯以及其它任务。
Such satellites—maintaining their steady sweeps as the earth revolves beneath them—cover all parts of the globe and hence are ideal for weather observation, communications and other tasks.
为了完成这个任务，CPU之间将要彼此通讯，从而导致每个处理器暂定当前正在运行的应用程序线程。
To do this, the CPUs will communicate with each other. This causes each processor to pause application threads that are currently running.
船员们与任务指挥中心间的任何通讯都会有20分钟的延迟，以模拟信号到达地球所需的时间。
Any communication between the crew and mission control will be subject to 20-minute delay to simulate the time it would take for signals to reach Earth.
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