It is a special engineering geological phenomenon in the frozen earth region.
它是冻土地区特殊的工程地质现象。
Damage control technique of harmful engineering geological condition is put forward too.
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.
提出了不良工程地质条件危害控制技术。
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