?? > ???? > ??

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

????:2024-11-24 01:33:09 ??:????

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

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

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

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

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

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

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

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

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

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

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

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

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

????

  • ????
  • ????