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Sentence

逆ぎゃく流りゅうを防ふせぐためにチェックバルブが必ひつ要ようです。

Span Details

逆ぎゃく流りゅう

backward flow; backflow; reflux; regurgitation

noun, suru verb

防ふせぐ

prevent; avert; avoid

godan verb

sake or purpose

-> ためgrammar

チェックバルブ

必ひつ要よう

necessary; needed; essential

na-adjective, noun