ľ»¯Ê¯£¬¹Å³ÆÉñľʯ»òľ±äʯ¡£´«ËµÖеĽµÁúľ£¬¼´´ËÖÖľʯ¡£×Ô¹ÅÒÔÀ´£¬Ðí¶àÎÄÈËÄ«¿ÍºÍ½ðʯר¼Ò£¬¶ÔÆäʯÉõΪÖØÊÓ£¬ÓÈÆäÊǽðʯÊղؼҶàÒÔÓÐÆäʯΪÈÙ¡£Ò»°ãÒԹ軯³Ì¶ÈÔ½¸ß£¬Äê´úÔ½¾Ã£¬ÓÈÆä´øÊ÷Ƥ¡¢ÄêÂÖ¡¢³æ¶´µÈÌØÕ÷ΪºÃ¡£Èç¹ûÐγÉÂê解¬ÐγÉÊ÷»¯Óñ¸üΪÊÀ½çº±¼ûÕäÆ·¡£Ê÷»¯ÓñµÄÓ²¶È¸ß´ïĦÊÏ7.4¶È£¬ÆäÖ÷Òª¿ó²ú³É·ÖΪµ°°×ʯ¼°ÓñË裬ÃܶÈ2.20g/cm3¡ª2.80g/cm3¡£Ê÷»¯ÓñÒÔÌØÊâÉí¼Û²»µ«Õ¹Ê¾Óñʯ¸»¹ó£¬ÃÀÀöµÄÄêÂÖºÍÊ÷ƤµÄ²×É£¼Ç¼×Å¡¢Ìṩ×ÅԶȥµÄÄǸöÄê´úµÄÈô¸ÉÐÅÏ¢¡£²»µ«Óкܸߵľ­¼Ã¼ÛÖµ¡¢¹ÛÉͼÛÖµ¡¢¿Æ¿¼¼ÛÖµ£¬¶øÇÒÔ¤¼Æ½ñºóÊ®Ä꣬ÔöÖµÊýÊ®±¶£¬ËùÒÔÓиü¸ßµÄÊղؼÛÖµ¡£