... 品字形导坑法top and twin-side bottom heading method 眼睛式开挖法spectacles type tunnelling method 超前导坑advance heading ...
基于40个网页-相关网页
... top and twin-side bottom heading method 品字形导坑法 spectacles type tunnelling method 眼镜式开挖法 advance heading 超前导坑 ...
基于1个网页-相关网页
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