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Sentence

炭たん田でんの開かい発はつが進すすんでいる。

Span Details

炭たん田でん

coalfield; coal field

possession, attribution, nominalizer, or nominal linker

開かい発はつ

exploitation (of resources)

noun, suru verb

advance; go forward; move ahead; precede; go ahead; lead; make progress; improve; deepen; heighten; intensify; be fast (clock); be ahead; gain time; do willingly; do of one's own accord

-> 進むgodan verb

ongoing or resultant state

-> ているgrammar