ÒòΪÍÖÔ²»ý·Ö·Ç³õµÈº¯Êý£¬Òò´Ë ´Ë¼ÆË㷽ʽרҵ²âËãÍÖÔ²Öܳ¤¡£¾«×¼¶ÈǧÒÚÔª·ÖÖ®Ò»¡£

ÍÖÔ²µÄÖܳ¤£ºL = 2 ¦Ð b 4£¨a-b£©
a ±íÃ÷ÍÖÔ²³¤°ëÖáµÄ³¤£¬b±íÃ÷ÍÖÔ²¶Ì°ëÖáµÄ³¤£¬ÇÒa£¾b£¾0
Ïà¹Ø¹¥ÂÔ
±íÃæ²¨ÔÚ½éÖʱíÃæ×÷ÍÖÔ²Õñ¶¯£¬ÍÖÔ²µÄ³¤ÖáÆ½ÐÐÓÚ²¨µÄ´«²¥·½Ïò¡££¨£©
ǧ·Ö³ß²âÁ¿³öÖáÖ±¾¶¶ø¼ÆËã³öÆäÖܳ¤µÄ·½·¨½Ð£¨£©¡£
²»Í¬¹ú¼ÒʹÓõÄÍÖÇòÌåµÄ³¤°ëÖá¡¢¶Ì°ëÖáºÍ±âÂʵȲÎÊýÖµÊÇÒ»ÑùµÄ¡£
·¢¶¯»ú¹¤×÷ʱ£¬µ±ÓҲ೵ÂÖ£¨Çý¶¯Öᣩ¹Ì¶¨Ê±£¬×ó²à°ëÖá³ÝÂÖ£¨£©¡£
µØÇòÖܳ¤
Ô²µÄÖܳ¤ÈçºÎ¼ÆËã_Ô²µÄÖܳ¤¼ÆËã·½·¨¹«Ê½
Ô²µÄÖܳ¤ÔõôËã_ΪʲôÇóÔ²µÄÖܳ¤ÒªÓÃÖ±¾¶³Ë3.14
flash»ù´¡½Ì³Ì-ÍÖÔ²¹¤¾ß
CADʹÓÃELLIPSE»æÖÆÍÖÔ²·½·¨
ÁùÖṤҵ»úÆ÷ÈËÖУ¨£©²ÉÓÃÓ²ÏÞλ¿ØÖÆÖáÔ˶¯·¶Î§£¬ËÄÖá¡¢ÎåÖáºÍÁùÖá²ÉÓÃÈíÏÞλ·½Ê½¡£
Ïà¹Ø×¨Ìâ
ÔÚÄ³Ð©ÌØ¶¨Çé¿öÏ£¬ÍøÃñÐèÒªÊÖ»úÀïµÄ¼ÆËãÆ÷À´°ïÖúËûÃǽâ¾öһЩÊýѧÎÊÌâ¡£´Ëʱ£¬Ò»¸öºÃµÄÒÆ¶¯¼ÆËãÆ÷¿ÉÒÔ°ïÖúÄãʹÓÃÕýÈ·µÄ³¡ºÏ¡£ÄĸöÊǺõļÆËãÆ÷Ó¦ÓóÌÐò£¿¶àÌØÆ»¹ûÔÚÕâÀïΪ¹ã´óÍøÃñÊÕ¼¯ÁË´óÁ¿µÄÊÖ»ú¼ÆËãÆ÷£¬°üÀ¨µÖѺ´û¿î¡¢Æû³µ±£ÏÕ¡¢»³ÔмÆËãÆ÷µÈ¡£¶àÌØÊÖÓÎרÌâΪÄúÌṩ¼ÆËãÆ÷app,ÊÖ»ú¼ÆËãÆ÷appÅÅÐаñ,ÊÖ»ú°²×°¼ÆËãÆ÷¡£¶àÌØÈí¼þÕ¾Ö»ÌṩÂÌÉ«¡¢ÎÞ¶¾¡¢ÎÞ²å¼þ¡¢ÎÞľÂíµÄ´¿ÂÌÉ«Èí¼þÏÂÔØ¡£
ÌìÆøÔ¤±¨¾«×¼¶ÈÅÅÐаñ£¬Ð¡±àÔÚÕâÀïΪ´ó¼ÒÕûÀíÁ˼¸¿î2024Äê×î׼ȷµÄÌìÆøÔ¤±¨·þÎñÈí¼þ£¬Óû§¿ÉÒÔͨ¹ýÕâЩÈí¼þÇáËɵÄÁ˽⵽×î׼ȷµÄÌìÆøÐÅÏ¢ºÍ¿ÕÆøµÄ½¡¿µÇé¿ö£¬ÎªÓû§µÄ³öÐÐÌṩÓÅÖÊ¡¢±ã½ÝµÄ·þÎñ£¬ÓÐÐèÒªµÄС»ï°é¸Ï¿ìÀ´ÊÔÊÔ°É£¡
Ò»°ëÊÓÆµÒ»°ëÕÕÆ¬Èí¼þ£¬×î½üÔÚÅóÓÑȦÄã»á·¢ÏÖһЩһ°ëÊÇÕÕÆ¬Ò»°ëÊÓÆµµÄ״̬£¬ÆäʵÕâ¸öÊÇͨ¹ýÈí¼þºÏ³ÉµÄ£¬Ö»ÐèÒª¼òµ¥¼¸²½¾ÍÄÜÍê³É²Ù×÷£¬Ð¡±àΪÄãÍÆ¼öÒ»°ëÊÓÆµÒ»°ëÕÕÆ¬Èí¼þ£¬ÈÃÄã×Ô¼ºÒ²ÄÜÇáËɺϳɣ¡
¶àÌØÊÖÓÎרÌâΪÄúÌá¹©ÒÆÖáÉãÓ°appÄĸöºÃ,iphoneÒÆÖáÉãÓ°¡£°²×¿Æ»¹û°æÒ»Ó¦¾ãÈ«,ÕÒÒÆÖáÉãÓ°appÄĸöºÃ¾ÍÀ´¶àÌØÈí¼þÕ¾ÏÂÔØ!
¶àÌØÊÖÓÎרÌâΪÄúÌṩʱ¼äÖáappÄĸöºÃ,ʱ¼äÖáÈÕ¼Çapp¡£°²×¿Æ»¹û°æÒ»Ó¦¾ãÈ«,ÕÒʱ¼äÖáappÄĸöºÃ¾ÍÀ´¶àÌØÈí¼þÕ¾ÏÂÔØ!
ͬÀàÅÅÐÐ
×î½ü¸üÐÂ
¸ü¶à·ÖÀà