box pre-bending machine 纸盒预折机
Cyclic bending tests of a box girder with longitudinal stiffeners were also carried out.
进行了纵筋加强箱形薄壁梁模型的循环弯曲试验。
Thirdly, pretressing, concrete creep and bending rigidity of box girder are studied to discuss their impacts on the deformation of girder.
再次，讨论了预应力、混凝土徐变、箱梁抗弯刚度等对桥梁结构下挠的影响。
In the ENTR 'acte there was a current of chill air in Ellen's box, the door was opened, and Anatole walked in, bending and trying not to brush against any one.
幕间休息时，海伦的包厢里有一阵袭人的寒气，门打开了，阿纳托利弯下身子，尽力不挂着别人，走了进来。
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