????:2024-11-24 09:29:34 ??:????
????:?????????:??????498???
??11???????????23???(? ???????)11??????23??,“?????”??????,??????????????
??????????????? ????????????????,???????,?????????????????????????????????????????????????????????????????????????????????????????????????30??????80?????????????,????,???????????
????,????????????????????????????????;????,?????????????????«GB/T23776????»??????,?????????5?????5???????
???????? ????????,????,???????????????????????,????(??????)??????????,???????????????????,??????????
????,????????????????,?????????????,?????????,?????????????????????????????????????
????,???“??????”????????????,?????????,????????????????????????,????«????????????»«??????????????»«????»?????
????????????????? ????“??????????????????????????,?????????????”???????,???????????????????,???????????????,????,????;??????????????????????,???????????????,?????
?????????,???????,????????“?????????”????,??,“????????????????????”????“??????????”?????????39.2???,????????120????,??????????2????,90%????,75%???“????”??????54.76??,??????????????????????????????????????????(????)
??:???????