• The wideband characteristics of two hemispherical helical antennas are analyzed by the method of moment with curved basic and testing function.

    采用螺旋基函数和检验函数分析了单臂半球面螺旋天线和双臂半球面螺旋天线的驻波、增益及方向图等特性

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  • The many stage helical gear train system optimal design which takes the dynamic properties as an objective function is presented.

    提出提高多级斜齿圆柱齿轮传动系统动态性能优化设计方法。

    youdao

  • The many stage helical gear train system optimal design which takes the dynamic properties as an objective function is presented.

    提出提高多级斜齿圆柱齿轮传动系统动态性能优化设计方法。

    youdao

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