框架中的柱有四个使用圆形钢管，而剩下的两个是方形管。
The columns in four of the framed specimens used circular steel tubes while the rest two were square tubes.
邱和思门(1971)研究了在圆管和方形管中输沙时具有螺旋运动的水流的水头损失问题。
Chiu and Seman (1971) studied the head loss of flows transporting sediment in circular and square pipes with spiraling motion.
本文用非线性有限元方法研究了准静态条件下纵向和横向加强筋对加筋方形管压溃破坏的影响。
The effects of longitudinal and transverse stiffeners on quasi-static crushing of stiffened square tubes are studied with the nonlinear finite element method.
本文用非线性有限元方法研究了准静态条件下纵向和横向加强筋对加筋方形管压溃破坏的影响。
The effects of longitudinal and transverse stiffeners on quasi-static crushing of stiffened square tubes are studied with the nonlinear finite element method.
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