box bridge [电] 匣式电桥
- The paper introduces application of proportioning of fly ash concrete with C50 high-performance in cantilever cast of main bridge box beam.
介绍C50高性能粉煤灰混凝土配合比在大桥主桥箱梁悬臂浇筑实际施工中的应用。 - The engineering situation of continuous box beam bridge is introduced.
介绍了广州市环城高速公路跨广州大道连续箱梁桥的工程概况。 - The" box" is a counterweight, used to keep the bridge open when boats are trying to go across it.
这个”箱子”是有秤锤的作用,当船要经过时,能保持桥梁的张开.
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