ÌâÄ¿ÄÚÈÝ
(ÈçͼËùʾ,ÔÚÖ±½Ç×ø±êϵxOyÖУ¬ÓÐÒ»°ë¾¶ÎªRµÄÔ²ÐÎÔÈÇ¿´Å³¡ÇøÓò£¬´Å¸ÐӦǿ¶ÈΪB£¬´Å³¡·½Ïò´¹Ö±ÓÚƽÃæÖ¸ÏòÖ½ÃæÍ⣬¸ÃÇøÓòµÄÔ²ÐÄ×ø±êΪ(0£¬R£©¡£ÓÐÒ»¸öÖÊÁ¿Îªm¡¢´øµçÁ¿ÎªqµÄ¸ºÀë×Ó,Óɾ²Ö¹¾µç³¡¼ÓËÙºó´Óµã£¨£¬0£©ÑØxÖáÕýÏòÉäÈë µÚ1ÏóÏÞ£¬Àë×Ó´ÓÉäÈëµ½Éä³ö´Å³¡Í¨¹ýÁ˸ôų¡µÄ×î´ó¾àÀë¡£²»¼ÆÖØÁ¦µÄÓ°Ïì¡£
(1)Àë×ÓÔڴų¡ÇøÓò¾ÀúµÄʱ¼ä£»
(2)¼ÓËٵ糡µÄ¼ÓËÙµçѹ¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿