????:1?????????????:??????????

2??????

3???????????

4????100?????

5???????

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

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

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

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

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

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

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

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

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

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

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

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