?????·?????ˉ????·￥??·?-????????±?????????¨??aé????ˉ????·￥??·?-????????±????è′§??·???a???±±???é??é?μè??é?￠??????????3¨????2??o-???é?????????±??????ˉ????§???¨???????-? 12?1′????o§???éa??????·?????′?????????
???????????????80?1′??￡???è???°¨é?ˉè???§???????è????¨??°?o?é?2?°′????????????60?1′???????§?è???°¨é?ˉ????·￥??????????o§???JC/T500-92???è???°¨é?ˉé?2?°′?????????è??????o?1993?1′4???1??￥??????????-¤é???ˉ1?????????è???°¨é?ˉé?2?°′????????????????ˉ1?????????è???°¨é?ˉé?2?°′?°??????????????o§??????è???°¨é?ˉ?o§??????????????ˉ?????±?o??′???¨???è????????é?¨?§????????????ˉ???é?????é???????aè|???ˉè·?????12???????¤?????·￥?-|????·￥???????¤??°±??ˉ??￥????????ˉ?-|??°????????????è?a?·±è′-?1°?′???¨???éa¨?????????é?￠????????¨?·￥??°????????????è·???????????′??o???????è??è?a?·±???èμ?????????????è?3??????????°±??ˉ??￥???è?????é?￠???????o§?o?????????￥?????°??¨???????¤???a?oo????1?????′???¨??????è￡?é???????a??????è￡?é??????¤§?????????????o?è?????èˉ′????????????????ˉ1?′???¨??????????¤§???é???±?????????ˉè???1??¤?????¤§?¤§?°??°?????′???¨????????????èμ·??￥???è?????è???3?????°±??????????¤??±±???é??é?μè??é?￠è???°??o??????????è?¤??o?????a??????è￡?é??????¤§????????????????????-????°????é???-￥???è￠??????o????·??±°?????±?o?è§??¨??¤§????′???¨????????????é????????èμ??o§??ˉ???????′???¨???????????ˉ?????a???????o§????????¨???????????????è????????é?￠?????????????¤1è?ˉ???????o§????????????????????ˉ?3??2????????2??￡??????????????￡????????o§??????????¤§???????????o?o?è?a?·±???????o??????????è??é??????′???¨????????·???????????ˉ??¨??·??????????????????????°±???é??è????????????????|???è???°±??ˉ??o????1??¤§?????????é?????è?a?·±??????é?￠???????o§?o?????′???¨???éa¨???????o§?o????è?a?·±????o§????????ˉ?ˉ????????????????è??è′§???é?±?o??????????????ˉ???a????￠?é?????????????????????????′???????????|?????￥è?￥???????°????????????????è????a?????±?o??2?????¤a?¤?èμ?é???????￥??°???é?￠???????′???¨???éa¨???è?????????|??????????????′???¨?????·???????¤§??????????ˉ????é?????é????o???é?¨???????±±???é??é?μè??é?￠??????è??è???3??o??¤??′￥??°??o??????????′???¨???????????????????o???a??????è￡?é???????￥?2??￡?????′???¨?????o?????????????????￥??·?ˉ???a????????￥??·?ˉ??13?±3?????????10??°15?·|??3???????-¤???????????¨é??????′???¨????????????????¤§é????ˉé???????·????????????????????￥??????
?????·?????ˉ????·￥??·?-????????±?????????¨??aé????ˉ????·￥??·?-????????±????è′§??·???a???±±???é??é?μè??é?￠??????????3¨????2??o-???é?????????±??????ˉ????§???¨???????-? 12?1′????o§???éa??????·?????′?????????
???????°???o??????é??è′-???é??é?￠?2??o-???è?????????°±?¤??o??????-????????3?3¨?????ˉ?????￥????????o??￡è?¨???????o§??????????ˉ????é￠?????????????????????°???????¤o???2010?1′????o§????????oè°?????ˉ?41.2%???è????°2016?1′?1′?o????è????a??°?-????????o?48.1%???è???±?????¤′???????????¨??oè°?????1′?????????????????§??ˉ???????????????è??è?¤??o??1?????????é???·2?????￠????1??§ˉè?????é????????è???¤?é???????′???è???????¨?ˉ?????ˉ1???è?2è??è???????ˉ??????????o|????¤§???????o§??????è??è???¤?èμ??????o?????o???è§????è??????·2?????￠è§??-???¨?????????????¤§??oè°??????o????????o??????è?′é￠??μ????????o§???????????o????ˉ??°??????¨2018?1′è??è???¤?èμ?????????????????°??¤???o??°??????????oo???è??è????????????????????è????ˉ?????a??°????¤???o???????|???μ???èˉ′?????????????2????é?2??§????3???ˉ?????1?????o????¤§?°?????2?????¤?????????μ???????oo????ˉ??o|?-????????°??¤???o????????oè?￥?12??aa????????a????￥?2?????2??o-??o??-???????ˉ1????????o??????????2????é?2??§?·￥??????è??????12è′?è′￡???è????o????ˉ???a?2?????2??o-é??è??é???¤??????oè-|???é??????????°?μ???¨?oo?????¨???é??é??????????￥?????￥èˉ￠???????o?è???o??????ˉ?????¨?2??o-?°±??ˉ??￥??′??￥??o?μ???¨?oo??????é??é?μè??é?￠èˉ?????????o?¤???oè-|?????¤?????????????????????????±???????????o¤é????ˉ??ˉ??¨?o¤é???2??o-????????¨??§??????????????1???????μ?????o¤é???μ?é???????¨?????§?????3??§????o￠?????ˉ??????????????￥???????o?è?a??¨??§?????¨??????????o?????????¨????o￠?????ˉ??ˉ??￥?????§é￠????è???????????é?′è?a??¨??????????°±?????-è§￡?????o??￥?o????èμ°??°è·ˉ??°??o?§??o????