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The civilization of the world develops with the range of human activity expanding from regional to global,from land to ocean,air and ultimately to space.A new concept of ownership would appear whenever the horizon of human activities was extended.Nations define the limits of land territory,territory of sea and territory of air to 相似文献
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This report describes the development and the benefits derived from China's communication satellites. It provides information on the experimental communication satellites and the four operational satellites which have all been put into geostationary orbit, and then the new medium-capacity domestic communication satellite which is scheduled to be launched in 1993. The direct and indirect benefits of the satellites in a variety of fields, such as broadcasting and TV transmission, TV education, long-range telephone and telegraph, data transfer in finance and railway traffic, are described. 相似文献
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