您可以以许多方式使用抽象，例如当您在时序图中使用可视化时一样，作为在代码运行时达到代码之上的层次的方式。
You can use abstraction in several ways, such as when you use visualization in timing diagrams, as a way to get above the code as it is running.
最后，甚至那些高层次的产业(按时序排在产业链最远一端的那些行业)也会发现他们的底部，然后重新开始雇佣工人。
Finally, even the higher-order industries - the ones furthest up the chain of production in a chronological sense - would find their bottom, and they would begin hiring workers on net.
本论文实现了全定制电路设计的单元级时序分析，充分体现了层次化的分析思想。
In the thesis, we implemented a cell-based timing analysis of a full-custom design, which shows the idea of hierarchical analysis.
重点介绍了时序电路的优化、异步设计、高层次电路设计和优化技术。
The optimization and asynchronous design of sequencing circuits and high level circuit design and optimizing techniques are described in particular.
我们很容易看出日常生活的时间结构是极端复杂的，因为经验当下时，时序性的不同层次一定是持续相关的。
It may be readily seen that the temporal structure of everyday life is exceedingly complex, because the different levels of empirically present temporality must be ongoingly correlated.
逻辑优化可以跨越层次结构：采用该设置可以令逻辑优化在全局跨越式进行，从而获取更好的时序性能。
When this property is set to True (checkbox is checked), Map ignores any Keep Hierarchy properties set for the Synthesize process and Map can perform. optimizations across any hierarchical boundaries.
逻辑优化可以跨越层次结构：采用该设置可以令逻辑优化在全局跨越式进行，从而获取更好的时序性能。
When this property is set to True (checkbox is checked), Map ignores any Keep Hierarchy properties set for the Synthesize process and Map can perform. optimizations across any hierarchical boundaries.
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