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Span Details
光ファイバー
optical fibernoun
による
by; due to; depending ongrammar
情報
information; news; intelligence; information (data); information content; informatics; information sciencenoun
伝送
transmission; sending; communicationnoun, suru verb
は
topic markergrammar
高速
high-speed; rapid; express; highway; freeway; expresswayna-adjective, noun
だ。
plain copulagrammar