%0 Journal Article %T ԽҰѵÁ·ÖÂëÖ¹ÇÖжÎǰԵÖ×Í´8Àý·ÖÎö %A ¸É½¨·¿ %A ÕÅÇÛ %J - %D 2001 %K ëÖ¹ÇÖжΠ%K ѵÁ·ÉË %U http://journal08.magtechjournal.com/Jwk_wjyx/CN/abstract/abstract6144.shtml