Anh
frozen ground
frozen soil
Đức
Bodengefrornis
Frostboden
gefrorener Boden
Pháp
sol gelé
Bodengefrornis,Frostboden,gefrorener Boden /SCIENCE/
[DE] Bodengefrornis; Frostboden; gefrorener Boden
[EN] frozen ground; frozen soil
[FR] sol gelé