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

??:

??

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

???

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

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

?????????

??????? ????? ? “?”??

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

??

??:???????????,??????????,??????????????