3ÔÂ2ÈÕ£¬½­Î÷¼ª°²°²¸£Êг¡Ã׳§¿ª»úµÍ룬¸±²úÆ·¼Û¸ñÉÏÕÇ¡£ÓÍ¿·³ö³§¼Û¸ñÕÇÖÁ1.40-1.42Ôª/½ï£»Ã«ËéÃ׳ö³§¼Û¸ñ1.37-1.38Ôª/½ï£¬Å×¹âÉ«Ñ¡ËéÃ׳ö³§¼Û¸ñ1.50-1.55Ôª/½ï£»µ¾¿Ç³ö³§¼Û¸ñ440-450Ôª/¶Ö¡£