文章还介绍了系统的整体结构，针对系统的物理层节点构成、MAC层协议给出了具体的设计方法。
The whole structure of the system was also introduced and the design method of node composing of physical layer and MAC layer protocol were given.
这是否意味着我们对系统工程学的方法——其要求逻辑层和物理层分离——有缺陷呢？
Does this mean that our approach to systems engineering — which calls for the separation of logical and physical perspectives — is flawed?
在EDA内部，您可以跨soa的各个分段(包括物理层和架构的虚拟层)传输事件，这样系统可以有效地作出响应。
Within an EDA, you can transmit events across all segments of an SOA, including physical tiers and an architecture's virtual layers, so that systems respond and act effectively.
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