?? > ???? > ??

??????????????????

????:2024-11-24 12:55:31 ??:????

????:???????????:??????

???????????????????????11????23?????????????(????????? ?????)11??23????,“?????”??,???

?????????????????? ?????????????????

?????????????,???????,??????????????????????????????????????????????????????????????????30?????????80????,????,???

????,????????????????????????????????????????????????????;????,??????????«GB/T23776??»?????????????????,??5???????????????5????????????

??????? ????

???????,????,????????????,????(??????)????,???????????????????,????????????????????

????,????,??????,?????????????????,?????????????????????????????????????????

?????????,????“????”?????????,???????????,???????????,???????«??»«????????????????????»«???»???????

????????????????? ????????????

“??????????????,??????????????”??,????,??????????,???????????????????????,?????;?????????????????????,??,???????

??????,???????,????????????????“???????”??????????,??????,“????????????”????“??????????????????”???????????39.2????????,??????120??????,????????2????,90%?,75%????????????????“????????????????”????54.76???????????????,???????????????????(???)

??:???

????

  • ????
  • ????