拓扑的范围不仅仅局限于描述一个完整的IT系统，或者说是它的主要部分。
The scope of topology is not limited to describing a complete it system, or even a major piece of it.
许多描述保守或耗散系统的非线性方程，在一定的参数范围内表现出内在的随机性。
Many nonlinear equations, describing either conservative or dissipative systems, show stochastic behaviour in suitable range of parameter values.
针对时间事件图(teg)建模范围窄的问题，提出了一种用来描述制造系统中的离散和连续事件的混杂事件图(HEG)。
As a timed event graph (TEG) only having narrow modeling range, a hybrid event graph (HEG) was put forward to describe discrete and continuous events in a manufacturing system.
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