???-17.8? ????????2????35???
???????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?,???(??????????????????????) ??:????????