%0 Journal Article %T °×³ãµÆÕô·¢¸£¶ûÂíÁÖÏû¶¾¹ñ %A ²Ü±þÑ« %J - %D 1994 %U http://journal08.magtechjournal.com/Jwk_wjyx/CN/abstract/abstract11125.shtml