?? ????????-17.8? ???2???35????
![](http://n.sinaimg.cn/translate/698/w899h599/20190202/75JE-hsmkfyn5779918.jpg)
????:1?????:???????
2???????????
3???qt??????????
4??????????
5???????????
???????2?8????(??????? ?)?????????,??????8???,???-17.8????-4.6?,????????,???35??2?????????
8???,??????????89?????,??????????????57?,???????,????5???????????????????,?????1?,“????????????????????”???
?“?”,????,????????,?,??,?????????,???????????,?????????????????????????????,??????????0??????,?2??????????,???????????68??
????,????8?????????-4.6????????2????????????-4.6???,???1990???2??1???????????(-6.2?)?
???????,??8?,???????,????????????????9???-3????-5?,?,?-6???????????????-8?,?????????10??,?????????-1??????-3?,?,????-4??????????????-7?,???(????) ????????:???