▼三四五2010/01/02 11:40 (C) 株式会社Forex/季楽な家開発奮闘記
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▼三四五2010/01/02 11:40 (C) 株式会社Forex/季楽な家開発奮闘記
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(C) Stepup Communications Co.,LTD. All Rights Reserved Powered by samidare. System：enterpriz [network media]
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よみ：さんしこ
職人言葉で直角三角形をつくる場合の三、四、五の割合の長さ。