?? > ???? > ??

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

????:2024-11-24 11:41:37 ??:????

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

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

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

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

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

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

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

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

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

??????? ????

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

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

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

????

  • ????
  • ????