たんこう炭鉱tankouたんこう炭坑tankou
1.
A place where coal is extracted from the earth, typically through various mining methods and techniques.
2.
An underground facility or site specifically designed for the extraction of coal resources from geological formations.
3.
A commercial operation focused on the removal of coal, often involving extensive tunnels and shafts to access deep deposits.
4.
A mining site characterized by the presence of coal seams, where workers extract coal for energy production and other uses.
Example:
あの支部は炭鉱労働組合に属している。