???????????,??????!????……

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

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

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

?????

????

?????

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

??????????(?)

?????

? ? ?? “??????”?????

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