çµæºç6个æ¥çº¿æ±ï¼å¯¹åºçå é¨ç»æå¦ä¸å¾ï¼å¯¹åºäºä¸ç¸ç»ç»ï¼
1ãå¦æçµå¨æºçç¸çµååçµæºçç¸çµåç¸åï¼åçµå¨æºéç¨Yå½¢æ¥æ³ï¼ä¸å¾ï¼aï¼ï¼
2ãå¦æçµå¨æºçç¸çµååçµæºç线çµåç¸åï¼åçµå¨æºéç¨â³æ¥æ³ï¼ä¸å¾ï¼bï¼ã
èèå°æ£åºåè´åºçé®é¢ï¼â³æ¥æ³è¿æå¦å¤ä¸ç§å½¢å¼ï¼