%0 Journal Article %T ¸ÎÔàÑ×ÐÔ¼ÙÁö21Àý·ÖÎö %A Îâ²®ÎÄ %A ФÑï %A ¸ðÁá %J - %D 2004 %K ¸ÎÔà %K Ñ×ÐÔ¼ÙÁö %U http://journal08.magtechjournal.com/Jwk_wjyx/CN/abstract/abstract9085.shtml