冻害;上冻期;冰冻季节
Discussion on the Frost Injury for the Bridge Foundation in Freezing Season and the Countermeasures
浅谈季冻区桥涵基础的冻害与防治
Underwater blastholes had been drilled under the Songhua River during the freezing season in the Northeast.
在东北严寒季节,在松花江上施工水下爆破孔。
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