?? ??????????????????
????:1??????????:??????????
2??????????
3???????
4????????
5??????????????
????11????23????(???? ????)11????23?????,“????????????”???????????????????,????????
??????? ???????????????????????????,?????????,???????????????????????????????????????????????????????????????????????????????????????????30?????????????????80????,??????,??????
???,???????????????????????????????;??,??????«GB/T23776??»????,??5???????????????5???????????
???????????????? ?????????,?????,???????????????,??????????(?????????????)????????????,???????,????????????
???,?????????,??,????????????,?????????????????????????????????????????????????
??????,???????“???”??????????,??,?????????,????«?????????????????»«?????????????????????????»«????????»????????
??????????????? ???????????????“??????????????????,???????”???????????????????????,??????,???????????????????,???????????????,?????????????;???????????????????????,?????,?????????????????
?????,????,????“????”????,????,“??????????”??????????“????”?????????????????39.2????????????,?????120????,??2????,90%??????,75%???“???????”??????54.76??????,?????????????????????(????)
?????:???