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隧道穿越不良地质段施工技术的研究。
Do research on tunnel passing through bad geological section.
youdao
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提出了不良工程地质条件危害控制技术。
Damage control technique of harmful engineering geological condition is put forward too.
youdao
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提出了不良工程地质条件危害控制技术。
Damage control technique of harmful engineering geological condition is put forward too.
youdao