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

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

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

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

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

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

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

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

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

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

???????? ??

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

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

???:?????