square sections meaning in Chinese

方钢

Fem simulation of roll extrusion forming process of square section tube
矩形管双道次辊挤成型过程挤压力公式的建立
Research on the flow characteristics of large curvature rotating square section duct
绕任意轴旋转的方形截面大曲率弯管流动特性的研究
Cylindrical helical springs made from rectangular and square section wire and bar - guide to calculation and design - torsion springs
矩形和方型线材和棒材制的圆柱形螺旋式弹簧.计算和设计指南.扭力弹簧
Cylindrical helical springs made from rectangular and square section wire and bar - guide to calculation and design - compression springs
矩形和方型线材和棒材制的圆柱形螺旋式弹簧.计算和设计指南.压缩弹簧