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现代科学技术,特别是空间科学和计算技术飞跃发展的今天,地球表面再没有什么地方可以称为神秘的“奥区”了①②。不管是层云密布的白昼,还是伸手不见五指的黑夜;无论是人迹难以达到的热带森林,还是渺无人烟的浩瀚戈壁;不论是地面上的种种自然资源,还是茫茫无际的海洋和瞬息万变的大气,……在新兴的探测技术面前,都将原形毕露一览无遗③。遥感,顾名思义,就是从遥远的地方去感觉运动着的物质的映
With the rapid development of modern science and technology, especially space science and computing technology, there is no place on the surface of the earth that can be called the mysterious “Olympic Area”12. Whether it’s a stratospheric day or a dark night, whether it’s a tropical forest that is difficult to reach, or a deserted Gobi, whether it’s a variety of natural resources on the ground, an endless ocean, or an ever-changing atmosphere,... ... In the face of emerging detection technologies, all the originals are completely exposed. Remote sensing, as the name suggests, is the reflection of the material that moves from a distant place