Ö÷ÒªÌØµã¼°ÓÃ;Characteristics and uses
1¡¢½á¹¹½ô´Õ¡¢Éè¼ÆºÏÀí¡¢·§ÃŸÕÐԺá¢Í¨µÀÁ÷³©£¬Á÷×èϵÊýС¡£
2¡¢ÃÜ·âÃæ²ÉÓò»Ðâ¸ÖºÍÓ²ÖʺϽð£¬Ê¹ÓÃÊÙÃü³¤¡£
3¡¢²ÉÓÃÈáÐÔʯīÌîÁÏ¡¢ÃÜ·â¿É¿¿¡£²Ù×÷Çá±ãÁé»î¡£
4¡¢Çý¶¯·½Ê½·ÖÊÖ¶¯¡¢µç¶¯¡¢Æø¶¯¡¢³ÝÂÖ´«¶¯¡¢½á¹¹ÐÍʽ£ºµ¯ÐÔШʽµ¥Õ¢°å¡¢¸ÖÐÔШʽµ¥Õ¢°å˫բ°åÐÍʽ¡£
5¡¢¹ã·ºÊÊÓÃÓÚʯÓÍ»¯¹¤£¬»ðÁ¦·¢µç³§µÈÓÍÆ·¡¢Ë®ÕôÆû¹Ü·ÈË×÷½Óͨ»ò½Ø¶Ï¹Ü·ÖнéÖÊµÄÆô±Õ×°Öá£
6¡¢²îѹբ·§ÊÊÓÃÓÚÓÍÆ·¡¢ÌìÈ»Æø¹ÜµÀÉÏµÄÆô±Õ×°Öá£