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