?? > ???? > ??

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

????:2024-11-23 21:44:35 ??:????

????:??92?:????

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

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

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

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

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

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

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

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

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

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

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

?????:???

????

  • ????
  • ????