mansard roof truss
... 压力继电器，稳压器，恒压器 manostat 折线形桁架 mansard roof truss 数值部分，假数，(对数的)尾数 mantissa ...
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基于几何非线性有限元理论，推导了折线形索单元的刚度矩阵，建立了索张拉预应力钢桁架的几何非线性数值分析模型。
Based upon the theories of geometrical nonlinearity, the stiffness matrix of cable elements are put forward and the numerical model of cable-prestressed steel structures are established.
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