分析、总结奥地利古典音乐的历史渊源、发展过程以及奥地利音乐厅的形成、演变，介绍奥地利首都维也纳经典音乐厅，并从建筑声学角度分......

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Since the development of the new Austrian tunnelling method(NATM)in the 1960s,this technique has been applied successful......

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