????,??????!???????????……
???????????????,???????2??????15????:??2??4????,????? “??”,??!
????????,???????,2?12??18??????????,???????????????????????????“??????”?
????????,?????????????????????:???????????,??,???
?????????? | ?????????????????????????????
???????,??????????????????????
??????????
??????????,????,???????????????
??,??????0???60??????????,?????????????????????????????????????,????????????
??????????????,?????,???????????75%???
??????????????,??????????????
???????,???
??????????????????????????????(?????18??????????)?????????(?????2448??)???(??????????????25?,??????23?????????)????????????????????(?????060?????)??????????(?????624?????????????????????,????)??????
??????,????????,????????????:
????????????????
???????????????????????????????????????
????????,?,????????
????,??????
????,???????
?????,???????,??????????????1????3????????????,???
?????????????????,??????
?????,??
?????????????,???????????????,???
?
?????????????«?»,?,?????????
??????????????????
???????????,?????????,??,??????????????????;
??????????(??????????)?????????????????????5000mg/L~10000mg/L????,?????,??????30?,?????????;
???????,????????;
????????????????;???????
???????????????
?????,?????????????;????????,?1000mg/L????????????????????30????,????????
???????
???????????????????????????????????????,??500mg/L??30??????????;??30????????????????????????????????????????,??,?????
??
?????????(???????????)???,?????30?,??????500mg/L??????,???????30?,?????
??????????
????????,????,??0.5%??3??????;?????????0.1%????????
???????????
????????????????????????????
?????????
?????
?????????????????????????????????????,?20????????
?
???,???????????,??????
?????
??????????????????
?????????????,??,???????
??????,??????????
???????
??3??????????,???????,??????????????
????:
?????????
???????
??
???????????????????????
??????????????(???)
??????????????????
?? ????????????? ????? “???????”?????????
?????:???????