?? ??? ???? ?? ??? ?? ?? ????? AWWA??? ??? ???? ??? ?? ?? ???.
? ??? ??? ??? ??? ????? ????? ??? ??? ??? ?? ???? ??? ??? ??? 2001? 1? AWWA ???? ????. ??? ???? “??? ?? ????? ???? ??? ??? ????? ??? ?? 30?? ??? ??? ?? ??? ???? ???? ???? ?? ??”?? “??? ?? ??? ?????? ??? ???? ???? ??”? ????.
????? shchung@donga.com
?????? ???? >
![[?????? ????]????? ??? ??????](https://image.donga.com/donga_v1/images/img_default.png)
?? ???? ?????!
-
??? ????
??
-
??? ???
??
-
???? ?? ? ?
??
-
- ???
- 0?
-
- ???
- 0?
-
- ???
- 0?
