????:1?????????:?????????SPA

2???????

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

4??????VX

5??????

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

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

?????“?????”!

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

«?????»??????????????,??????????,?????,????

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

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

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

??????????

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

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

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

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

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

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

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

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

???!?????!

????????

«??»??????????,??????,????????????,???

????«?????»(GB/T 14272 - 2021)?:

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

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

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

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

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

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

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

????“???????”????????????????????????

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

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

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

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

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

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

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

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