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

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

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

???

?????

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

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

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

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

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

??

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