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https://www.chukyo-u.ac.jp/extension/library/2025%E5%A4%8F%E5%AD%A3%E4%BC%91%E8%AC%9B%E6%9C%9F%E9%96%93%E3%83%9D%E3%82%B9%E3%82%BF%E3%83%BC%28PDF%29%20-%20NL_%E4%BF%AE%E6%AD%A3_1.jpg