????,??????!???????????……

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

????:

??

?????

????????

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

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

?????

???? ?? ????? “???”??