????:1?????vx:????wx

2???????????

3??????????

4????????

5?92939598???????

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

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

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

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

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

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

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

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

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

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

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

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