??????,????!???????????……
???????,??????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???????????,??????????????,????????????????
????:
?????????????
??????????????
???????????????????
?????????????
?(??????)
????????
??? ????????? ??????? “???”?????
?????????:?????