In this paper, how to solve the system dynamics model is studied, and efficient numerical algorithm is put forward.

论文对所导出的动力学模型的求解方法进行了研究，提出了有效的数值算法。

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On the system dynamics, the dynamics model for roller cone bit under the interaction of drilling string and rock was established.

从系统动力学的角度出发，建立了基于钻柱、岩石相互作用下的牙轮钻头动力学模型。

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In other words, the unstable limit cycle will be bifurcated from the original asymptotical stable equilibrium point at another higher series compensation level, and the system dynamics will change.

换句话说，在另一较高的串联补偿度上，轨道不稳定的极限环将从原来渐近稳定平衡点上分岔出来，系统的稳定性态将被改变。

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The essentials of the model, that system dynamics, in reacting to small changes in demand, have a huge detrimental impact on capacity levels, were introduced by Jay Forrester at the Massachusetts Institute of Technology in the 1960s.

ECONOMIST: Pakistan's problems

Ms. PRIEST: And so, you've got these two - not - these two dynamics moving the system into being bigger.

NPR: Intelligence Failures In 'Top Secret America'

So the power dynamics underpinning the political system make all of the spending categories relevant to military modernization vulnerable to cuts in a defense downturn, even though Secretary Gates and his subordinates insist it is essential to maintain robust spending in those areas.

FORBES: How Politics Will Shape The Defense Downturn