maintenance of existing bridges
... 桥梁加固 strengthening of existing bridges 桥梁维修 maintenance of existing bridges 原构件 existing structure member ...
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maintenance of existing bridges
现有桥梁的维修
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The method is proposed as a design aid for structural engineers involved in the assessment, maintenance, and repair of existing Bridges, and the design of new arches.
建议本方法为涉及现存桥梁的评估、维护和修理及新拱桥设计的结构工程师的设计辅助工具。
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