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By tests, the construction quality and design reliability are verified for the gantry crane girder.
通过试验, 验证了门机大梁的施工质量和设计的可靠性.
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Based on the design research, reinforced concrete girder is chosen for gantry crane girder dam crest.
经设计研究, 坝顶门机大梁选用预制钢筋混凝土梁.
吊车梁???
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