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: A development for Europe is this additional small barge board (right arrow) in front of the main one (left arrow), connected to the protruding horizontal turning vane in similar fashion to a solution used by BAR last year.
中文: 主侧板（左边箭头）前面所增加的这个小侧板（右边箭头）是欧洲站的一个改进，它连接到突起的水平导向叶片上，类似于英美去年曾使用过的一个方案。
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英文: A new type of Double-acting Contactless Sliding-vane Pump was put forward to the defect analyzed on Sliding-vane, which uses roller to control the locus of sliding vane to insure the minute gap between the stator and sliding vane.
中文: 摘要通过分析滑片泵存在的缺陷，提出了一种利用滚柱控制滑片运动轨迹，使滑片与定子内表面保持微小间隙的新型双作用无接触滑片泵。
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英文: Abstract: As there were leak on contact place between shaft and rotor-body in built-up hollow rotor, dropping discharg gas speed of pump and efficiency applied of oil-sealed sliding vane rotary vacuum pump.
中文: 文摘:组合式空心转子由于轴头与转子体之间的结合面存在着渗漏，使泵的抽气效率性能下降，从而影响其在应用中的效率。
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英文: Abstract: In this paper, the problems met in designing, producing and use of the rotary-vane vacuum pump are discussed. The solution methods and the research direction are given.
中文: 文摘:本文论述了旋片真空在设计、生产和使用中存在的问题，提出了解决的方法和研究方向。
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