?? (?????)???4??“???????”:???
????:1?????????:??300?????
2???????
3??????????????
4???????
5???????
?1????????31? ????:???????????4????????????????“??????????”:?
??????? ????? ?? ??????????????
?,?????,????????????,???????????“????”???????????,???????,?????????
????????????(?????)????????????????????????????? ??? ?????????????60??,?????????????60???,??????????????10????,????,???(???)??
“??DN500???,????????????????????300?????,??????????????”1???25?????,????????????(??)???
“???????????????????????????????????????????????……”???????????,“?????????”??????????:“?????,?????????,??????”
??,????“?????????4???????????????50?????2????????,????????????????????????,???”????????????,????,????“?”?
????????(??)?????? ????? ??????????????,“????”????????DN500?????????,??????,???????????????????,????????????????????????????????,??????????????????????????
????,44???????????????????(????????????????)???:“???,???,????????????,?????”
??(?????????)????,??,?????????????,??????????????,????????????,?????????????????,???????????????,??
?4???,????????,??????,???????
????,??????????????,??????????????,???,????“????????”???????????????????(???)
????????:???????