求翻译：从桥梁的发展来看，目前的桥型已经基本不会改变，大跨度桥梁要发展，我认为我们需要做到努力改良传统材料，发掘和应用新型材料，在大桥中应用创新且实用的技术，只有这样，大跨度桥梁才会发展。是什么意思？

From the bridge of the development, the existing bridge type has basically not changed, to the development of large-span bridges, I think we need to do to improve traditional materials, excavation and application of new materials, innovative and practical application of the bridge of technology, Onl

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From the development of the bridge, the bridge currently has basically not changed, long-span bridges in order to develop, I think we need to do efforts to improve traditional materials, discovery and application of new materials, application of innovative and practical technology in bridge, the onl

According to development of the bridge, the present bridge type will not basically change, the large span bridge will be developed, I think we need to improve the traditional material hard, explore and employ the new materials, employ innovating and practical technology in the bridge, only in this w