?? ??????????????????
????:1????????????:?????92?
2???????
3???????????
4?spa????????
5?????
???11??23?????(??? ????)11????????23???????????,“??????????????????”???????,???
????????????? ????????,????,?????????????????????????????????????????????????????????????????????????????????????????????????????????????30??80?????????????,????????????,??
??????,?????????????????????????????;????,???«GB/T23776???????????????»????????????,?????5???????5???
?????????????? ???????,??????,?????,??????(????????????????)???????????????????????,??????????????????????,????????????????????????????????????
??,????,????,???????????,??????????????????????????????????????????
????,?????????????“?”????,??????,??????????????,?????????«???????????»«???????????»«????»?????
????????????????? ??????“????????????????????????,??????????????”?????????,??????,????????,???????,????;??????????????????????????????,????,???????????
?,???????????,??????“????”??,??????????,“?????????”????“?”????????????????39.2????,????????120?????????,????2??,90%????,75%??????????????????“???????”?????????????????54.76????????,????????????????????????(????)
?????:?????