?? ??????????????????
????:1??????????:????????????
2?????????
3??????????
4?????300????
5???????????
??????????????????11??23???(???? ??????????)11???????????????23???,“??”???????????????????????,?????
??????????????????? ??????,??,???????????????????????????????????????????????????????????????????????????????????????????????????????????30??80????,?????????,??????????
??????????,?????????????????????????????????????;??????,?????????????«GB/T23776????????????»??????,???????????5?????????5???????
???????????????????? ?????????????????,????????????,??????????,?????????????(??????)?????,???????????,???????????????????
??????????,????,????,???????????????,????????????????????
???????,????????“????????????”?????????????,??????,?????????????????,?????«????»«?????????????????????»«??????»?????????
?????????? ??????“????????????????????????????????????,???????????????”?,??,??????????????????????,?????,??;????????????????????,???????,????????????
????,????,???????“????”????????,??,“????????”????“???”???????39.2???,????120???????????????,????2??????,90%??????,75%?????“??”????54.76????,???????????????????????(????)
???????????:?????