顾名思义，方形管是种方形体的管型，很多种材质的物质都可以形成方管体，它介质于，干什么用，用在什么地方，大多数方管以钢管为多数，多为结构方管，装饰方管，建筑方管等。
方形钢管混凝土 concrete-filled steel box column ; square CFT stub column ; square CFT
方形翅片管 square fin coil ; Square Finned Tube
冷弯方矩形管 cold-bending square/rectangular pipe
方形发光二极管 Rectangular LED
直接焊接T形方管节点 directly welded T type RHS joints
方形软管接头 square hose fittings
方形钢管混凝土框架 Concrete-filled square steel tubular frame
方形钢管混凝土短柱 square cft stub column
方矩形无缝钢管 seamless steel square tube
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.
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