以下为句子列表：
英文: A 3-D viscosity turbulence model is used to analyze the unsteady around flow field of the thrust-vectoring engine of the jet vane, and results of the area including vane base, vane flake and motor shell are presented.
中文: 摘要以推力矢量发动机的燃气舵为研究对象，采用三维、粘性、湍流流动模型和数值分析的接触网格技术，在定常流动计算的基础上，对包含舵基、舵片和发动机壳体的区域进行详细数值分析。
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英文: Abstract: Based on specific characteristics of river network in Duhu town of Taishan city, Guangdongprovince, a unsteady outflow model is established.
中文: 文摘:根据广东省台山市都斛镇灌排河网的特点，建立了河网非恒定出流数学模型。
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英文: Abstract: Based on the heat equilibrium fundamental theory and the unsteady heat transmit equation,a numerical model of temperature field of an underwater oil storage tank was established.The numerical prediction was obtained and compared with the experim
中文: 文摘:基于对储油罐模型试验和温度场变化规律的大量实测数据，并对相关参数进行优化分析，依据热平衡基本原理和导热微分方程，用有限差分法对非稳态传热进行数模计算，得到了与实验值吻合较好的油罐温度场计算结果，为工程设计提供依据。
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英文: Abstract: Based on the results of hydraulic model test and remote-control ship model, the unsteady flow characteristics in the downstream approach channel and the reaches from Three Gorges Project to Gezhouba Project and navigation conditions in these rea
中文: 文摘:根据水工模型试验成果，分析了三峡工程泄洪时坝下游引航道和两坝间河段(三峡至葛洲坝)的非恒定波流运动特性，结合遥控自航船模试验对两坝间的通航水流条件进行了分析评价，并提出了提高通航流量标准、改善通航条件的相应措施。
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英文: According to the hydraulic property of overflow weirs under steady flow, the flow patterns of overflow weirs were classified into free overfall and submerged overfall, and numerical models for unsteady flow were established to simulate the two flow patter
中文: 摘要为了对保水堰的交替水流进行数值模拟，依据保水堰恒定流情况下的工作特性，将保水堰的水流形态分成堰流和满流两种状态，分别建立保水堰不同流态下的非恒定流数学模型。
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