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冰穴
gen. polynia
agric. cryoconite holes
desert. cryoconite hole
hydroel.st. ice cave
oil polynya (尤指北极海面的未结冰处)
tech. glade; regional clearing
UN, clim. polynya
潜艇在水下所见冰穴
gen. skylight
冰 穴
: 34 phrases in 7 subjects
Desert science1
Earth sciences1
Engineering geology4
General4
Mountaineering6
Oil / petroleum2
Technology16