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

2??????????

3?????????

4???????????

5??????????

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

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

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

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

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

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

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

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

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

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

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

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