坑こう内ない掘ぼり炭たん鉱こう

Related words

• 露ろ天てん掘ぼり炭たん鉱こう

  露天掘り炭鉱 is an open-pit coal mine, while 坑内掘り炭鉱 is an underground coal mine.

• 炭たん鉱こう

  炭鉱 is the general term for a coal mine, without specifying the mining method.

Built from

Written forms

• 坑こう内ない掘ぼり炭たん鉱こう

  Full standard spelling for an underground coal mine.

• 坑こう内ない掘ぼり炭たん鉱こう

  Abbreviated spelling omitting り; less common but still encountered.

Etymology

Compound of 坑内 (inside a mine) + 掘り (digging) + 炭鉱 (coal mine).