ݥӥ˥륢륳(PVA)ϽǻȤ۹ҤǤǤפʬƤĤȤäƤǤϤʤȻפޤ ˸Ȥäư夲줿վΤˤȤƤޤʬΤȤǤ
פʬˤʤˤϤʤͥ줿ħäƤꡢ
βʪ ϵڤӷ줬 Ǵ٤ꤷƤ ٤Ź٤ΰ㤤ˤ͡ǺؤθդбǤ롣
ؼɽȲΤ褦ˤʤ롣
PVAȸäƤ⡢٤Ź٤ΰ㤤ʤɤ롣
ʻФդʪ(äӱΩʤɤΤ)ˤƤϡ٤⤤ۤͥƤ롣
ݥꥨƥ븶ˤϡʬʪPVAϻˤƤͥ줿̤Ƥ롣
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