?? > ???? > ??

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

????:2024-11-23 21:50:17 ??:????

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

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

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

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

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

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

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

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

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

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

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

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

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

????

  • ????
  • ????