Concrete is used in combination with other distinctly different materials, such as steel reinforcing bar, polypropylene fibers, and high-strength wires to produce different types of concrete.

具体是用在与其他组合明显不同的材料，如钢筋，聚丙烯纤维钢，高强度混凝土生产线，以不同的类型。

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On the basis of experiment research, the internal force of high strength bolt joint area of steel beams and concrete walls within steel profiled bar was analyzed under the low period cyclic load.

在试验研究的基础上，对钢梁与钢骨混凝土墙高强螺栓连接节点在低周反复荷载作用下节点域的内力进行分析。

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So the high effective pre-stressed reinforced concrete hollow slab with Medium strength spiral-continuous -ribs steel bar has a good prospect.

因此，以中强螺旋肋钢丝为受力筋的预应力空心板具有广阔美好的发展前景。

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