Unstructured tetrahedral meshes are used to simulate the flow field inside high pressure combined valves of a 600mw ultra supercritical steam turbine under the nominal condition.

采用非结构化四面体网格，对某600 MW超超临界汽轮机组高压主汽调节联合阀的额定工况进行了数值模拟。

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Secondly, model output tracking robust control is proposed under the large-scale mode aggregation and the condition that the controlled nominal system is similar to the reference model.

然后从大系统模型集结为背景提出模型输出跟随控制问题，研究了被控系统的标称系统与理想模型相似时的模型输出跟随控制系统的鲁棒控制问题。

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Then it analyzes the interaction among the inflows of foreign fund under the condition of its unsymmetrical flow, domestic nominal interest rate, and inflation of currency, as well as the limit…

然后分析在外资流动的不对称性情况下外资流入、国内名主利率和通货膨胀之间的联动性，以及作为反通货膨胀工具的冲销政策的有限性；

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