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永冻层
 永冻层
bridg.constr. permanently frozen ground; layered permafrost
desert. ever frozen layer; permanent froze layer
ecol. permanent frozen layer
met. ever-frozen layer
oil permafrost horizon
soil. permafrost; pergelisol; permagel
 | 底面
 底面
met. bottom side

to phrases
永冻层 yǒngdòngcéng
gen. congelisol
agric. everfrozen layer
bridg.constr. permanently frozen ground; layered permafrost
desert. ever frozen layer; permanent froze layer
earth.sc. permanently frost
ecol. permanent frozen layer
expl. everfrozen formation
hydroel.st. permafrost layer
met. ever-frozen layer
oil permafrost horizon
soil. permafrost; pergelisol; permagel
tech. eternal frost; ever-frost layer; ever frozen; permafrost frozen layer
永冻层
: 47 phrases in 11 subjects
Agriculture1
Bridge construction3
Desert science2
Drilling1
Earth sciences2
Engineering geology10
General2
Hydroelectric power stations3
Metallurgy1
Oil / petroleum2
Technology20

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