冻结土壤
soil freezing and thawing
生态土壤深度处理
ecologic soil deep treatment process
最大冻土深度
maximum depth of frozen soil
the largest depth of frozen soil
冻结深度
freezing depth
depth of frost penetration
frost penetration
depth of freezing
frost depth
Frozen ground depth
板桩墙入土深度
penetrating depth of sheet--pile wall