?? > ???? > ??

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

????:2024-11-24 14:51:51 ??:????

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

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

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

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

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

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

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

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

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

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

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

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

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

????

  • ????
  • ????