切きり込こみ炭たん

noun

run-of-the-mine coal; raw coal

Technical term for coal as it comes from the mine, before sorting or processing. Used in mining and energy contexts.

• 切きり込こみ炭たんは選せん別べつ前まえの石せき炭たんで、品ひん質しつにばらつきがある。

  Run-of-the-mine coal is coal before sorting, and its quality varies.