The Bridge is technically complicated and the construction is difficult.
该桥施工技术复杂，施工难度较大。
Because the girder construction is difficult and the technology request is high, so triangle truss style cradle is adopted.
施工难度大，技术要求高，采用三角桁架挂篮施工。
Due to the complicated chamber structure and stress state, as well as unfavourable geology structure, the construction is difficult.
由于洞室结构和应力状态复杂以及不良的地质构造，施工难度更大。
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