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

2???????????

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

4????????

5?????QQ?

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

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

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

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

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

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

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

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

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

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

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

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