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Sentence
Span Details
石油精製
oil refining; petroleum refiningnoun
では、
contrastive で + は; then; well thengrammar
リフォーミング
reformingnoun
に
direction, time, indirect object, or target markergrammar
よって
therefore; consequently; accordingly-> 因ってconjunction
オクタン価
octane rating; octane numbernoun
を
object markergrammar
高める。
raise; increase; enhance; boostichidan verb