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又一奇观亮相世界，百米峡谷之峰飞架凌空螺旋桥，宛如“玉如意”
随着中国的又一奇观在世界上亮相，这座百米峡谷之峰飞架起来的螺旋桥，宛如一柄“玉如意”让世界多国人民直呼厉害；那么这样的桥梁究竟是如何建成的呢？
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