GB T 20001.2-2001 标准编写规则 第2部分：符号

GB T 20001.2-2001 标准 excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载 编写规则 第2部分：符号 Ç?ÑÔ?ê×??àÐ??æÔò?ÖΪÒÔÏÂ???ö???Ö µÚ???ÖÊõÓï µÚ???Ö?ûºÅ µÚ???ÖÐÅÏ??ÖÀà?àÂë µÚ???Ö??Ñ??ÖÎö???? ?????ÖΪµÄµÚ???Ö?úÌæ?ê×?????×?µ?Ôò?ûºÅ?úºÅ?ê×??àÐ? ?æ?????ÎÐÞ????ÕÕ?ÔÔ-?ê×?ÖØÐÂ?øÐÐÁ˵?ÕûÓëÏà?È?????ÖµÄ ?æ???ü?Ó?ßÌåÌá?ßÁË?É?Ù×?ÐÔÖ?Òª?ä??ÈçÏ ÐÞ?ÄÁË?ê×?µÄÃû?Æ ?ê×?µÄ×ÜÌå?á???àÅÅ???øÐÐÁËÐÞ?Ä Ôö?ÓÊõÓïÎÄ×Ö?ûºÅ?û ??µÚÕÂ?ê×??àÐ?µÄ?ù??ÒªÇó?ÄΪ×ÜÔò??Ôö?ÓÁËÓÐ?ØÐ-µ?µÄÄÚÈÝ ?Ô?ê×?Ö??ä?ûºÅµÄÒýÓÃ×??ö?ÏÏêÏ?µÄ?æ???û ?ûºÅË?ÒýÓÉÓÃÒ?ÂëË?Òý?ÄΪÓÃ?ûºÅ?àºÅË?Òý??Ôö?ÓÁËÍâÎÄ?ò??À-??Êý×ÖÆðÊ×µÄ ?ûºÅÃû?ÆµÄ Ë?Òý?àÅÅ????µÄ???æµÄ ?Ô?ûºÅ?íµÄ?àÐ?×??öÁË?ü?ÓÏêÏ?µÄ?æ????Ôö?ÓÁË×??áºÅÀ?µÄ???æµÄ µÚÕ ?Ô??Â?µÄ?í?ñÊ?Àý?øÐÐÁ˵?Õû??Ôö?ÓÁËеÄ?í?ñÊ?ÀýµÄ??Â????æµÄ ??Â? Ôö?ÓÁË×ÊÁÏÐÔ??Â??ûºÅºÍÏà?Ø?ú?Ò?ê×??û??Â? ÊÇ?ê×?????×?µ?ÔòÖ?ÄϺÍ?àÐ??æÔòµÈϵÁÐ?ú?Ò?ê×?Ö?Ò?ÏÂÃæÁÐ?öÁËÕâÐ??ú?Ò?ê ×? µÄÔ??Æ?á????Æä?ÔÓ?µÄ?ú?Ê?ê×?µ?ÔòÖ?ÄÏÒÔ?????úÌæµÄ?ú?Ò?ê×? ?ê×?????×?µ?Ôò µÚ???Ö?ê×?µÄ?á??ºÍ?àÐ??æÔòµ?ÔòµÚ???Ö?úÌæ µÚ???Ö?ê×?µÄÖÆ??????µ?ÔòµÚ???Ö?úÌæ µÚ???Ö??Êõ??×??ÌÐòµ?ÔòµÚ???Ö?úÌæ mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger ?ê×?????×?Ö?ÄÏ µÚ???Ö?ê×???ºÍÏà?Ø?î??µÄÍ?ÓÃ?Ê?ãÖ?ÄÏ?úÌæ µÚ???Ö?ÉÓÃ?ú?Ê?ê×?µÄ?æÔòÖ?ÄÏ µÚ???ÖÒýÓÃÎÄ?þµÄ?æÔòÖ?ÄÏ?úÌæ µÚ???Ö?ê×?ÖÐÉæ????È???ÃæÄÚÈݵÄ?àÐ?Ö?ÄÏ µÚ???Ö?úÆ??ê×?ÖÐÉæ????????ÃæÄÚÈݵÄ?àÐ?Ö?ÄÏ ?ê×??àÐ??æÔò µÚ???ÖÊõÓï?úÌæ µÚ???Ö?ûºÅ?úÌæ µÚ???ÖÐÅÏ??ÖÀà?àÂë?úÌæµÚ???Ö??Ñ??ÖÎö?????úÌæ ?????ÖµÄ??Â???Â?ÊÇ×ÊÁÏÐÔ??Â? ?????ÖÓÉÖÐ?ú?ê×?ÑÐ??ÖÐÐÄÌá?ö ?????ÖÓÉÈ??úÍ?ÐÎ?ûºÅ?ê×?????ÊõÎ?Ô??á?é?Ú ?????ÖÆð?ݵ?Î?ÖÐ?ú?ê×?ÑÐ??ÖÐÐÄ?úе?ÆÑ?ÑÐ??Ôº??Éè???ê×????îË? ?????ÖÖ?ÒªÆð?ÝÈË?×µîÒ?ÕÅÁÁ?ÂÔªÇÅÇ?Òã?ùÍ?ÎÀÃ? ÓÚÄêÔÂÊ×?Î????ÄêµÚÒ??ÎÐÞ????ÖØÐÂÈ????ê×?ºÅΪ?ê×??àÐ??æÔò µÚ???Ö?ûºÅ??Î? µÄ?????Ö?æ??ÁË?ûºÅº?ÎÄ×Ö?ûºÅÍ?ÐÎ?ûºÅ?ê×?µÄ?á??ºÍ?àÐ??æÔò ?????ÖÊÊÓÃÓÚ?ú?Ò?ê×?ÐÐÒµ?ê×?ÖеÄ?ûºÅ?ê×?µÄ?àÐ?µØ???ê×?ÆóÒµ?ê×?µÄ?àÐ??É?ÎÕÕÊ?ÓÃ?Ç ?ûºÅ?ê×?Öк?ÓÐ?ûºÅÄÚÈݵÄ?àÐ?Ò??É?ÎÕÕÊ?Óà ?æ??ÐÔÒýÓÃÎÄ?þ ÏÂÁÐÎÄ?þÖеÄÌõ?îÍ??ýµÄ?????ÖµÄÒýÓÃ?ø?ÉΪ?????ÖµÄÌõ?î??ÊÇ×?ÈÕÆÚµÄÒýÓÃÎÄ ?þÆäËæºóËùÓеÄÐÞ?ĵ????üÀ???ÎóµÄÄÚÈÝ?òÐÞ???æ?ù??ÊÊÓÃÓÚ?????ÖÈ??ø?ÄÀø?ù?Ý?????Ö?ï?É Ð-ÒéµÄ????ÑÐ??ÊÇ?ñ?ÉÊ?ÓÃÕâÐ?ÎÄ?þµÄ×îÐÂ?æ????ÊÇ??×?ÈÕÆÚµÄÒýÓÃÎÄ?þÆä×îÐÂ?æ??ÊÊÓÃÓÚ?? ???Ö mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger ?ê×?????×?µ?ÔòµÚ???Ö?ê×?µÄ?á??ºÍ?àÐ??æÔò ?ê×?????×?µ?ÔòµÚµ?Ôª?ê×?µÄÆð?ÝÓë?íÊö?æÔòµÚ???ÖÊõÓï?ê×??à Ð??æ???à ?ê×?????ÐÞ????ÖØÐÂ?àºÅΪ?Î?ûÇ?ÑÔÍ?ÐÎ?ûºÅÊõÓï Í?ÐÎ?ûºÅ?íÊ??æÔò×ÜÔò ËùÓÐ???ÖÍ?ÐÎ?ûºÅ?íÊ??æÔò??ÊõÎÄ?þÓÃÍ?ÐÎ?ûºÅ Í?ÐÎ?ûºÅ?íÊ??æÔòÉè??ÓÃÍ?ÐÎ?ûºÅ ËùÓÐ???ÖÍ?ÐÎ?ûºÅ?íÊ??æÔò?êÖ?ÓÃÍ?ÐÎ?ûºÅ ÊõÓïºÍ??Òå µÚÕºÍÖÐÈ?Á?µÄÒÔ??ÏÂÁÐÊõÓïºÍ??ÒåÊÊÓÃÓÚ µÄ?????ÖΪÁË???ãÏÂÃæÖØ??ÁÐ?öÁËÖеÄÒ?Ð?ÊõÓï ?ûºÅ ÓÉÊéÐ??æÖÆÓ?Ë?µÈ????ÐÎ?ɵÄ?É?í?ïÒ???ÊÂÎï?ò?ÅÄî?ßÓÐ?ò??ÌØÕ?µÄÊÓ?õÐÎÏó ??Òå Í?ÐÎ?ûºÅ ÒÔÍ?ÐÎ?òÍ?ÏñΪÖ?ÒªÌØÕ?µÄ?í?ïÒ???ÊÂÎï?ò?ÅÄîµÄ?ûºÅ ??Òå ÎÄ×Ö?ûºÅ ÎÄ×Ö?úºÅ ÓÃ×ÖÄ?Êý×Öºº×ÖµÈ?òËüÃǵÄ×éºÏÀ??í?ïÒ???ÊÂÎï?ò?ÅÄîµÄ?ûºÅ×ÜÔò ?ù??ÒªÇó ?ûºÅ?ê×?µÄ?àÐ?Ó??ûºÏµÄ?æ???ê×?ÖеÄÍ?ÐÎ?ûºÅ??Ó??ûºÏ µÄ?æ?? Ð-µ? ÔÚÖÆ???ûºÅ?ê×?Ê?Ó??ûºÏÏÖÓÐ?ù??ÐÔ?ûºÅ?ú?Ò?ê×?µÄ?æÔòÒÔ??Ö??ûºÅ?ê×?µÄÕû ÌåÐ-µ?ÐÔ?ê×? ÖеÄ?ûºÅÓ?ÓëÏÖÓÐ?ûºÅ?ê×?ÏàÐ-µ? ??Â??ø?öÁË?ûºÅºÍÏà?Ø?ú?Ò?ê×? mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger ?á?? ?ûºÅ?ê×?µÄÄÚÈݺÍ?ã?Î???ÖÓ??ûºÏµÚÕµÄ?æ?? ?í?ø?öÁË?ûºÅ?ê×?ÖÐÒªËصĵäÐÍ?àÅÅÊ?Àý??ÁÐ?öÁËÃ??öÒªËØËùÔÊÐíµÄÄÚÈÝ?àÐ? ?ê×?Ê??É?ù ?Ý?ê×????ÔÏóµÄ?ßÌåÌØÕ?ºÍÖÆ???ê×?µÄÄ?µÄÑ?Ôñ?íÖеÄÓÐ?ØÒªËØ?ûºÅ?ê×????É ?üº??íÖ?ÍâµÄÆä Ëû?æ??ÐÔ??ÊõÒªËØ ?í?ûºÅ?ê×?ÖÐÒªËصĵäÐÍ?àÅÅÊ?Àý?íÐø Æð?Ý ×ÊÁÏÐÔ?ÅÊöÒªËØ ?ûºÅ?ê×?µÄ?âÃæÄ??ÎÇ?ÑÔÒýÑÔµÄ?àÐ?Ó??ûºÏÖеÄ?æ?? ?æ??ÐÔÒ??ãÒªËØ Í?Ôò ?ûºÅ?ê×?ÖÐ??Î?ºÍ?æ??ÐÔÒýÓÃÎÄ?þµÄ?àÐ?Ó??ûºÏÖк͵Ä?æ?? ?ê×?Ãû?Æ ?ûºÅ?ê×?Ãû?ƵÄ?àÐ?Ó??ûºÏÖеÄ?æ?? ?ûºÅ?ê×?µÄÃû?ÆÓ?Çø?Ö?ö?ûºÅµÄÀà?ðÈç µç×Ó?Ü?ÎÊý?ûºÅ ÒºÑ?ϵÍ???×??éÖÊ?ÌÌå?ÅÁ?ÎÛÈ?µÈ???úºÅ ÆøÌå???âÆ?ÎÄ×Ö?ûºÅ ?ðÊô??ÌåÖÆÍ?Í?ÐÎ?ûºÅ×? ?êÓÐÏÂ??ÏßµÄÎÄ×ÖΪ?ûºÅµÄÀà?ðÍ?ÐÎ?ûºÅ?ê×?Ãû?ÆÓ?ÄÜÇø?Ö?öÍ?ÐÎ?ûºÅµÄÀà?ð ?ûµÄ?æ??Èç Ïû?À??ÊõÎÄ?þÓÃÏû?ÀÉè??Í?ÐÎ?ûºÅ µçÆø?òÍ?ÓÃÍ?ÐÎ?ûºÅ ??????ÖÃÍ?Í?ÐÎ?ûºÅ µçÆøÉè??ÓÃÍ?ÐÎ?ûºÅ ?êÖ?ÓÃ????ÐÅÏ?Í?ÐÎ?ûºÅ×? mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger ?êÓÐÏÂ??ÏßµÄÎÄ×ÖΪÍ?ÐÎ?ûºÅµÄÀà?ð?æ??ÐÔ??ÊõÒªËØ ÊõÓïºÍ??ÒåµÄ?àÐ?Ó??ûºÏÖкÍ??Â?µÄ?æ?? ?ûºÅ?àºÅ?ûºÅ?ûºÅÃû?Æ?ûºÅ˵Ã?ºÍÍ?ÐÎ?ûºÅ×??áºÅµÈÓ?ÒÔ?íµÄÐÎÊ?ÁÐ?ö?íµÄ×ÝÏòÀ??Ó×óµ?ÓÒ?Ö?ðΪ?àºÅÀ??ûºÅÀ?Ãû?ÆÀ?˵Ã?À?×??áºÅÀ?ÈçÏÂËùÊ?Ê?Àý ?àºÅ?ûºÅÃû?Æ˵Ã?×??áºÅ??Â? ÖÐ?í?í?ø?öÁË?ûºÅ?êÖ??íµÄ?àÅÅÊ?Àý ÎÄ×Ö?ûºÅÈç?ûÒÔÊõÓïÃû?Æ?ûºÅ??ÒåµÄÐÎÊ??öÏÖÔò?É??ÖеÄ?æ?? ?Ô?àºÅÊõÓïÃû?Æ?ûºÅ??ÒåµÈ?øÐÐ?àÅÅÒà?É??ÕâÐ?ÄÚÈÝÁÐ?í?àÅÅÈçÏÂËùÊ??Î?û?íÊ?Àý ?àºÅÃû?Æ?ûºÅ??Òå?ê×? ÖÐ?ø?öÉè??ÓÃÍ?ÐÎ?ûºÅÔ-Í?Ê??àºÅÍ?ÐÎ?ûºÅÃû?Æ˵Ã?ºÍ×??áºÅµÈµÄ??ÖÃÈçÏÂËùÊ? Í??ø?öÁËÏàÓ?µÄ?ê×??àÅÅÊ?ÀýÍ?ÐÎ ?ûºÅ ?àºÅ Ãû?Æ Ó?ÎÄ?ÔÓ??Ê ËµÃ? ×??áºÅ?ûºÅ?ê×? ???É?æ??Ò?Ð?ÆäËûÏà?ØÄÚÈÝÈçÑÕÉ???Î??ûºÅÊÇ?ñ?ÉתÏòÍ?ÐÎ?ûºÅµÄ?-??ÖÆ×? ºÍÓ?ÓõÄ?æÔò????µÈ ?æ??ÐÔ??Â?µÄ?àÐ?Ó??ûºÏÖк͵Ä?æ?? ?ØÒªÊ??É??ÖеÄÏà?ØÄÚÈÝ?àÈë??Â????ÉÔÚ??Â?ÖÐ?ø?öÉ??È×ø?ê?òÉ??ê ×ÊÁÏÐÔ???äÒªËØ ×ÊÁÏÐÔ???äÒªËصÄ?àÐ?Ó??ûºÏÖк͵Ä?æ?? ?ûºÅ?ê×?ÒË?àÐ??ûºÅµÄÖÐÎÄÃû?ƺÍÖÐÎÄÃû?ƵÄÓ?ÎÄ?ÔÓ??ÊË?Òý?ûºÅµÄÊýÁ????ý?öÔòÓ??à Ð?Ë?Òý ÖÐÎÄÃû?ÆË?ÒýÓ????ûºÅÃû?ƵĺºÓïÆ?Òô×ÖÄ?Ë?Ðò?àÅÅÖÐÎÄÃû?ƵÄÓ?ÎÄ?ÔÓ??ÊË?ÒýÓ???À-??×Ö mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger Ä?Ë?Ðò?àÅÅ Èç?ûºÅÃû?ÆÒÔ??À-??Êý×Ö?òÍâÎÄ×ÖÄ?ÆðÊ×?òÈ???ΪÍâÎÄ×ÖÄ?×é?ÉÊ?ÔòÔÚ?ûºÅµÄÖÐÎÄÃû?ÆË?Òý ÖÐ??ÕâÀàÃû?ÆÅÅÔÚºº×ÖÖ?ºóÒÔ??À-??Êý×ÖÀ-??×ÖÄ?Ï?À?×ÖÄ?µÄ?ÎÐò?àÅÅË?ÒýÄÚÈÝ?üÀ??ûºÅµÄÖÐÎÄÃû?Æ?òÓ?ÎÄ?ÔÓ??Ê??ÆäÔÚ?ê×?ÖеÄ?àºÅÃû?ÆÓë?àºÅÖ??äÓÃ?ûºÅ Á??Ó ÒýÓà ?ûºÅ?ê×?ÖÐÒýÓÃ?ßÌå?ûºÅÊ?Ó?ÔÚ?ê×?ÄêºÅºó?ÓÔ?À?ºÅ?ø?ö?ûºÅµÄ?àºÅ ÒýÓÃÆäËû?ê×?ÖеÄ?ûºÅÊ???ÒË?ø?ö?ßÌå?ûºÅµÄÍ?ÐÎ?É?ÉÈ?ÈçÏÂ?????íÊ? ?ø?öËùÒýÓÃ?ê×?µÄ?àºÅ??×?ÈÕÆÚÒýÓÃÊ??ø?ö?ê×??úºÅºÍË?ÐòºÅÊ?Àý ÆäËûÓÐ?ØÍ?ÐÎ?ûºÅ?û ÆäËûÓÐ?ØÍ?ÐÎ?ûºÅ?û?ø ?ö?ßÌå?ûºÅµÄ?àºÅÊ?Àý ÏÂÁÐÍ?ÐÎ?ûºÅÒàÊÊÓÃÓÚ??ÁìÓò ?ö×â?µÍ?ÐÎ?ûºÅ?û Æ?Îñ?þÎñÍ?ÐÎ?ûºÅ?û ÖÐ?ÍÍ?ÐÎ?ûºÅ?û ???ÜÍ?ÐÎ?ûºÅ?ûΪ ???Ö?ê×?ÖÐ?ûºÅÌåϵµÄÍêÕûÐÔÒ??ÉÔÚ?ê×?ÖÐÁÐ?öÆäËû?ê×?ÖеÄÉÙÁ??ûºÅ?ËÊ?Ó?ÔÚ?ûºÅ˵ Ã?À?ÖÐÁÐ?ö?Ã?ûºÅÔÚÔ-?ú?Ò?òÐÐÒµ?ê×?ÖеÄ?ê×??àºÅºÍ?ûºÅ?àºÅ?ûÕâÖÖÇé?öÏÂÓ???Ô-?ê×? ÁÐÔÚ?Î??ÎÄÏ×ÖÐ ?ûºÅ?í?àÐ?Ï?Ôò ?àºÅÀ? Í?Ò??ê×?ÖÐÒ??ö?ûºÅÖ?ÄÜÓÐÒ??ö?àºÅ??Ò??ö?àºÅÖ??ÔÓ?Î?Ò?µÄ?ûºÅ ?ûºÅ?àºÅÐÎÊ?Ó?Çø?ðÓÚ?ê×?µÄÕÂÌõ?àºÅ??Ó??ûºÏÏÂÊöÔ-Ôò ?àºÅµÄ×Ö?ûÊý×î?àΪ?ö mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. 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Èç?ûËùÓÐ?ûºÅ???Ó˵Ã?ÒàÄÜÀí?âÓÖÃ?ÓÐÆäËûÐèҪ˵Ã?µÄÄÚÈÝÔò?ÉÊ?ÂÔ˵Ã?À??û?í ×??áºÅÀ? Ó???Í?ÐÎ?ûºÅµÄ×??áºÅÌîÈë?ÃÀ?ÖÐÍ?ÐÎ?ûºÅµÄ×??á?ÌÐòºÍÒªÇó??ÓÐ?Ø?æ??Ö?ÐÐ mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger ?àÅÅ?ñÊ? ?ûºÅ?ê×?µÄ?àÅÅ?ñÊ?ºÍ?ùÃæÒªÇóÓ??ûºÏµÚÕµÄ?æ????Â? ×ÊÁÏÐÔ??Â? ?ûºÅºÍÏà?Ø?ú?Ò?ê×? Í?ÐÎ?ûºÅ?ýÍ???ÆäÓ?Óà ??È?É? ??È??êÖ? 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Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger Óк?Æ?Ô?ÀëÊ?Æ??íÔ?ÐÎÍ?ÐÎ?êÖ??íµÄ?àÅÅ?àºÅÍ?ÐÎ?êÖ?Ãû?Æ˵Ã?×??áºÅ ?ûÖ?Å浂 ?ûÖ?ÌøÏ ?ûÖ?ÈëÄÚ ?ûÖ?Í?Áô?íÕýÈý?ÇÐÎÍ?ÐÎ?êÖ??íµÄ?àÅÅ?àºÅÍ?ÐÎ?êÖ?Ãû?Æ˵Ã?×??áºÅ ×?Òâ??È? µ?ÐÄ?ðÔÖ µ?ÐÄ??Õ??íÎÄ×Ö?ûºÅ?íµÄ?àÅÅ?àºÅÃû?Æ?ûºÅ??Òå˵Ã? ÖÊÁ?ÖÊÁ?ÊÇ?ù??Á?Ö?Ò??ÎÔÄ µÄ??×? Ìå?ýÖÊÁ? ÖÊÁ?ÃÜ?È ÖÊÁ??ýÒÔÌå?ý Ïà?ÔÌå?ýÖÊÁ? Ïà?ÔÖÊÁ?ÃÜ?È ÎïÖʵÄÃÜ?ÈÓë?Î??ÎïÖʵÄÃÜ?È ÔÚ?ÔÁ?ÖÖÎïÖÊËù?æ??µÄÌõ?þÏ µÄ?È ÖÊÁ?Ìå?ý ?ÈÌå?ý Ìå?ý?ýÒÔÖÊÁ? ÏßÖÊÁ? ÏßÃÜ?È ÖÊÁ??ýÒÔ???È mobility has improved continuously, expanding the scope of urban traffic congestion and traffic demand contradiction. The rapid growth of vehicle ownership, putting huge pressure on urban traffic system. Space the shape of mass distribution along the Yangtze River in Yibin city, groups of old city and South Bank, South Bank Group intensive passenger