Ö÷Òª¹¦Ð§£º¶ÔËÀÃç¡¢Àøù¡¢ËÀ¿Ã¡¢»Æ»¯¡¢¸ù¸¯²¡¡¢¾¥»ù¸¯²¡¡¢¸ùÖײ¡¡¢¿Ýή²¡¡¢Âû¿Ý²¡µÈÍÁ´«²¡º¦¡¢ÖزçÕϰЧ¹ûÏÔÖø¡£
¼ÁÐÍ£º·Û¼Á ¾»º¬Á¿£º2.5¹«½ï
²úÆ·ÌØµã
¹à¾ú1ºÅÊǸù¾ÝÍÁ´«²¡º¦Ìص㼰·¢²¡»úÀí¶øÑз¢µÄÐÂÐÍÖÆ¼Á¡£±¾Æ·ÊÇÒÔµØÒÂÑ¿æß¸Ë¾ú£¬¿Ý²ÝÑ¿æß¸Ë¾úµÈΪÖ÷Òª³É·Ýµ