• 分析参数倾斜角度管径大小摩阻系数

    Analyses parameter have inclined Angle, pipe diameter size, gas liquid ratio and friction factor and so on.

    youdao

  • 本文高聚物稀溶液帆布管内流动系数进行实验研究

    This paper tries to pinpoint the frictional drag coefficients of dilute polymer solutions flowing through canvas hoses, obtained by experimental methods.

    youdao

  • 测试内容包括预应力锚索锚固摩阻系数混凝土钢筋应力以及结构变形

    The test included anchoring force of prestressed anchor cable, frictional coefficients, stress of concrete and steel bar and structure deformation.

    youdao

  • 最后讨论了系数张拉控制应力影响提出现场测试一般性原则要求

    Finally, the influence of frictional resistance factors on the controlled tensioned stress is discussed and the general principle and requirements of field measurement are presented.

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  • 通过实验方法测试了原生长江水冷却水换热器污垢热系数变化

    The variation of fouling resistance and frictional resistance coefficient of heat exchanger using connate Yangtze River water as cooling water is tested experimentally.

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  • 因而,要提高长距离输气管线输气流量降低运营成本,降低阻系数非常必要

    The bigger the friction is, the lower the gas flow is, and so the running cost of the pipeline increases.

    youdao

  • 而且波浪是海岸地区一个非常重要海洋水动力因素,波浪作用下底部边界层、底阻系数剪应力泥沙起动理论成熟

    But the theory about the flow regime of the wave boundary layer, the wave friction factor, the bed shear stress and the initiation of sediment motion has not developed very well.

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  • 本文给出了高超声速飞行器表面传热系数(斯坦顿)计算结果

    In this paper the results of calculations of the coefficients of skin friction and heat transfer (Stanton number) on the surface of hypersonic flight vehicle are presented.

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  • 2H施工难度大:水平井段长,管柱摩阻,对施工管柱要求安全系数

    The construction of P202-2H well is hard due to long horizontal hole section and large string friction. High safety coefficient for strings in construction is required.

    youdao

  • 2H施工难度大:水平井段长,管柱摩阻,对施工管柱要求安全系数

    The construction of P202-2H well is hard due to long horizontal hole section and large string friction. High safety coefficient for strings in construction is required.

    youdao

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