以下为句子列表：
英文: A superalloy double helix integrated impeller with good performances of dimensional precision, microstructure and mechanics was rapidly manufactured by HPDM (hybrid plasma deposition &milling) method proposed by author's, laboratory, which synthesized pla
中文: 摘要采用等离子熔积与铣削复合制造技术，在等离子熔积成形过程中复合铣削精整，试制了难加工高温合金双螺旋整体叶轮样件，其组织性能和力学性能均高于采用传统工艺加工获得的叶轮。
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英文: Abstract: The paper introuduces the methods of making drawing of double channel impeller in classical works, points out some problems in the drawing and gives out a correct method of making drawing after combine atual situation.
中文: 文摘:简述了现有文献中双流道叶轮的叶片绘型方法，指出文献中绘型存在的问题，并结合设计实例给出了正确的绘型方法。
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英文: An impeller optimization method based on the 3-D viscous flow analysis was proposed, where the blade was parameterized using inverse design method and neural networks was adopted.
中文: 摘要利用反问题计算间接对叶片进行参数化并结合神经网络技术，建立了一种基于三维黏性流动分析的叶轮优化设计方法。
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英文: An optimized impeller in a mixed-flow pump, where the head and the efficiency increased by 7.43% and 3.37% respectively, confirmed the validity of this newly proposed method.
中文: 通过对一台混流泵叶轮进行优化，扬程和效率分别提高了7.43%和3.37%，从而验证了该方法的实用性。
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英文: A Flow Model and Design Method of the Impeller of Forward-swept Blades
中文: 前向叶轮的流动模型及其设计计算方法
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