????,??????!???????????……

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

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

?

????

?

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

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

????????

????????????? ??????????????? ??????????????????????????? “??????????????”??????????