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13号车钩基本尺寸和性能
Basic dimensions and parameters of yoke for NO 13 coupler
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预制后张法预应力混凝土铁路简支梁
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预应力混凝土铁路桥简支梁静载弯曲试验方法及评定标准
Post-tensioned pre-cast concrete simple-supported girder for railway bridge pro-stress
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预应力混凝土铁路桥简支梁静载弯曲抗裂试验方法
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先张法离心型成型预应力混凝土管桩
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