Dynamic context and steady context are decided by the variability and steadiness of context factors.
动态语境和稳态语境是由语境因素的可变性和稳定性决定的。
Some research state clearly: random dynamic respond of large fluctuation levels can be given rise to random variability of structure's parameters and sometimes it becomes leading factor.
众多研究工作表明：结构参数的随机变异性可以引起结构随机动力响应的随机涨落，结构力学参数的随机性还可能成为主导因素。
Variability, interaction and self-amendment are the three features of Contemporary Chinese, which requires a dynamic research rather than a static one.
中国当代汉语呈现出三大动态特色：多变性、互动性和自补性。
Objective To study structure of the unstable periodic orbits (UPOs) of R-R interval signals of heart during orthostatic standing, and to reveal the dynamic characters of heart rate variability (HRV).
目的研究立位心脏R- R间期信号的非稳定周期轨道的结构，进一步探讨心率变异（HRV）的动力学特征。
But the constitution conditions vary from person to person, a relative stability is a dynamic characteristics of the variability.
但体质状况因人而异，具有相对稳定性也具有动态可变性的特点。
Therefore, the variability of axle deflections and their effects on the dynamic performance in the dynamic meshing of spiral bevel gears was studied.
因此，本文还研究了动态啮合过程中轴变形的变化规律，及其对螺旋锥齿轮动态啮合性能的影响。
Therefore, the variability of axle deflections and their effects on the dynamic performance in the dynamic meshing of spiral bevel gears was studied.
因此，本文还研究了动态啮合过程中轴变形的变化规律，及其对螺旋锥齿轮动态啮合性能的影响。
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