Việt
bể than
Anh
coal-mining area
coal basin
Đức
Kohlebecken
Pháp
bassin houiller
Kohlebecken /nt/THAN/
[EN] coal basin
[VI] bể than
Kohlebecken /ENERGY-MINING/
[DE] Kohlebecken
[EN] coal-mining area
[FR] bassin houiller