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hard frozen soil
expl. 坚硬冻土土中未结冰水含量很少,土粒为冰牢固胶结,土的强度高、压缩性小,在荷载作用下,表现脆性破坏,与岩石很相似
hard-frozen soil
eng.geol. 硬冻土
tech. 坚硬冻土