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Sentence analysis
9Spans
Sentence
Span Details
平炉
open-hearth furnacenoun
は
topic markergrammar
かつて
once; before; formerly; ever; never yet; never before; first time-> 嘗てadverb, no-adjective
製鋼
steel manufacture; steelmakingnoun, suru verb
の
possession, attribution, nominalizer, or nominal linkergrammar
主要
main; principal; major; chiefna-adjective, noun
な
adnominal form of the copula after a na-adjectivegrammar
設備
equipment; facilities; installations; amenities; install; equip; provide with facilitiesnoun, suru verb
だった。
past copulagrammar