?? ????????:??????“????????”,??
![](https://image.chezhanri.com/2019/0618/20190618110610123.jpg)
????:1???????150:????
2?????
3???????????
4??????
5????????
????????????4???????????1??,?225.2???????????,????????????16.6%,?3?????????????
????,???6????????????????????????????24???????????25????,??????????????,?,???????
????????????????????????????????????????????,??
????????,????(www.thepaper.cn)??????????????????????«??????????»(GB/T 33671-2017)???????????,?????????
??,2024?????????,?,??????,???????????????????,??????,?????
“???,?????????????,???????,?,????”?????
??????????????????,?????????,????,??????????“?????”????????????????????????,???????????????????,?????“??????????????????????”??
“??????????????????????,???????”????,“?????????????????????????????,?????,??????????????”?
??????:
????????????????????????
??????????:????????????????????????
??:???????????????????????????,????????????????????????????????????????????200??400??,????????????????500??????????????713?????????????????????6??24?????25????????,??????????????????????????,??????????????,???????????????????
??,?6??????????25????????????????,?186??????,????:?????????????????281?????????????????????????187????????????????????70??????????????????????????
?????????????“????”???????
???????????:????“??????????????”????????? “???????”?
???:«???»??????????,???,?50%?????????????;?????????????????????50%??????,??“?????”;????????????????80%??“????????”?????????????????1954???????????????????????????1998????2020????,??????????????????1-2??????
?,???,??,??????????,????????????????????“??”,????????????????????600??,?????????????????????????“??????????????”?????????????
????,???????6?24?30??,????????????????????????????????????????????,??,?,??????????????????????????????????????????????????????????????????????,????????????,????????????
?????????????“??????”????
???:??
???????:?,?????,?,??????????????????????????,??????????,???????????28°N??????????????,????34°N???????????????????,??????????????????????????????6??????1?????????????
????????????????????,?????,???????????????????????,?,?????????????“?”?????????????????????????,???????????
?,???????,?,????????,??????????3?:??????;????,???????????;??????????????????????????,??
?????????????????????????????
?,????????????????????,????????????,????????,?????????,?????????????,????????????????????“??????????????????”?,?????????????????,?????????????????,???????????????????????“???????????”??
??,???????????????,??????????6???????9????,7??????????????????????????????10??,???????31?????????,??395??;??6??????????14????????????,7????????????????16????????????,???32?????????????????????,???????????????318.2??????;??6????????23?,7???????????14?????,??21?,???????????????????257.2?????
????????????:????
????????:1951?????22?????????????????,?????3??????????(1983????????????1998??????????2016????),????????1???(1973??????????????????????????????????),????????????????8??????????????????????????????????????????14??,??8?????????????????????????????????????,??(1983?????????????????????????1998?????????????2010???2016????????????????2020???)????????????????????:1954?????????????1969???????????????1983?????????????????????????1998???????????????2016??????????????????2020???????????????,???
??????????,?,?????????????,?????????????????????,????????????????
????
????:?????????????????????
?:??,?????????,????
1951???????????????,??????20?90??,20????????????????50???????????????60??????????????90????21??????? 2020????????,??????????????????????5???????29?????,???10???;8??2??????????,??15??,??1961??????????????;??????????780.9 mm,??437.5 mm,????????????????????????1951????????,???????????1954???
??????:????,??????????????????
????????:???????????????????????,?????,?????????????????????????,??????5 ?(??????????????????????????????????) ????21????????????????,??????????,??????????????,????????????????????????
?6-7??????????????“?????”??????????????????????2012?????????????????????:5???,???????????????????,?????????????????????,??????????????????????2017????????????????????«??????»??????????????????????????????????????????????????????(GB/T 33671-2017),???????????????????,?????????????????????????????????,???????,?????,??????????????,???????????????????
????3??????,??????????????????,???????5?,???????,????????,??????????????????????????
????
???????????????????????:????
?:????,?,???????????????????????????2024??????????,???????????????????????????????,???????????
?:??????,?????
?:??,??,??????,??????,??????????,?2900???????????????,??GDP?????0.89%,??2????????????;????????????????????????3.3????????????????????????,?????????????????????????,????????????
???????,?,????????,?????????????,???????????????,????????????????,??????????????????????????
???????????:????????????