一体、どういう定義だ?
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  KGK (life name: Keiji KOSAKA), Dept. of Phys., Okayama Univ.        
 kgk@film.rlss.okayama-u.ac.jp http://film.rlss.okayama-u.ac.jp/~kgk/ 
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# まあ、最近はそうなのか。