“????”??????????:????????,??

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

??????????????????????? ??“????????”

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

????????“????”?“?????????????”

?????!

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

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

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

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

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

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

??“?????????????”??“???”????“???”

?????,?????????:

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

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

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

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

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

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

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

???

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

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

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

??,???????????????????“????”,???

?,??,???????????????????,??“?”,????

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

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

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

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

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

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

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

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

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

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

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

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

(??????????)

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