Direct perturbation method of nonlinear vibration frequency about elastic circular cone flat shell of axial symmetry

  • 轴对称弹性圆锥扁壳非线性自由振动直接摄动解法

  • 互联网摘选 2025-01-20 19:07:11

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句