Definition of 坑内掘り (こうないぼり)
こうないぼ
坑内掘り
こうないぼり
kounaibori
noun
•
pit mining
Related Kanji
| 坑 | pit, hole |
| 内 | inside, within, between, among, house, home |
| 掘 | dig, delve, excavate |
| 坑 | pit, hole |
| 内 | inside, within, between, among, house, home |
| 掘 | dig, delve, excavate |
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