????:1????????:????spa

2?????????

3?????

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

5?????????

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

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

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

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

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

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

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

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

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

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

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

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