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Sentence
Span Details
パワーエレクトロニクス
power electronicsnoun
は
topic markergrammar
電気自動車
electric car; electric vehiclenoun
の
possession, attribution, nominalizer, or nominal linkergrammar
開発
development; cultivation; application; exploitation (of resources)noun, suru verb
に
direction, time, indirect object, or target markergrammar
欠かせない
indispensable; essential; vital; crucialexpression, i-adjective
技術
technology; engineering; technique; skill; art; craftnoun
だ。
plain copulagrammar