????:2024-11-24 14:47:22 ??:????
????:?????????:???????
????11????23???????????????(???? ????)11??????????23??????????,“????”??,??????????????????
??????????????????? ?????????????????????,????????,?????????????????????????????????????????????????????????????????????????????????????????????????30?????80??,??????????,?????
????????,???????????????????????????????????????????????;?,????«GB/T23776???????»??,??????5???????5?????
????????? ????????????,??????????????,???????,???????(????????????)???????,??????????????????????????,????????????????????????
??????,??,???,??????????????????????????????????,??????????????????????????????????????????????????????????
????????????????,?????????“???????????????????”??,??????,?????????????????????????????,??????«??????»«????????»«??»???????
?????????????????? ???“??????????????,??????????????????”?????,?????,????????????????,???????,??;??????????,????,?????
????,????,??????“??”????,?,“??????????”?????????“????”????????????39.2??????,??120??????,????2?????,90%??,75%??“??????????”??????54.76????,?????????????????????????(?)
?????????:?????????????