??
?,???????????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?????,?????????????????????,????????????
??????:
???
?????????
???????????
????????????????????????????????????????????????
???(??????????)
?????????????
????? ? ?? “?????????????”??????
?????:?????????????????
?????????,???????????!??????……?????????????