In underground construction, we often use artificially ground freezing method to control soft earth recently.
在地下工程施工中，为强化软弱地层，近年来常采用冻结施工法。
Freezing ditch is a kind of effective measures to control ice cone harm.
冻结沟是防治冰椎危害的一种有效措施。
Freezing ditch is a kind of effective measures to control ice cone harm.
冻结沟是防治冰椎危害的一种有效措施。
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