prestressed concrete i beams
prestressed concrete i beams
预应力混凝土工字梁
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Owing to the existing warping torsion, it has been rather difficult to make a theoretical and experimental study of the prestressed concrete I -beams under combined mixed torsion. flexure and shear.
弯、剪、扭复合作用下的予应力工字梁，由于翘扭变形的存在，使得对它进行理论研究和实验研究非常困难。
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