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

2??????????

3??????????

4????????

5?????????????

?????????????? ???????“??”

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

?????????????“????????”??“?????”

???!

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

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

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

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

???????????????,?,??1???2??????

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

???????“????”?“???????????”?“???????????????????”

?,??:

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

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

????????,?????????????,???????????“90???”,??????????????800??,????????“??”,?????400??

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

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

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

??!??????????????!

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

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

?????????????????«?»(GB/T 14272-2021)??:

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

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

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

???????,???????,????????????????????20??????

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

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

????????????“??”??“?????????”?????????40???,???????6???????????????«?»?:

???????“?????”????????????????????????????

?“???????????????????”???????????????????

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

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

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

??????????????????????????????,???,?????,???????????????,?,??????????????,?????????????7???????????

?7?????????????????,??,????????????????????,????????????

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

(????)

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