游客在澳大利亚可以观赏到各种地形风貌，从沙漠到热带雨林，从地处热带的海滩到白雪皑皑的田野，从扑朔迷离的大都市到人迹罕至的旷野。
Here you witness an astonishing variety of environments, from desert to rain forest, from tropical beach to white snow field, from big, sophisticated cities to vast uninhabited areas.
同时由于干旱区面积广大，又存在大片沙漠和高山等人迹罕至的地方，因此采用遥感与地理信息系统技术提取相关信息的应用潜力更大。
It is potential to take RS and GIS technology to acquire arid areas information, because arid areas is so vast and it has so many deserts and high-mountain which people rarely come.
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