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李永适 《华夏地理》2007,(11):10-10
为了寻找Made in China的字样,我把身边大大小小的东西都检查了一遍。我并不意外地发现,我所有电器的电池,不管是哪一国品牌,型式有多冷僻,都是中国所造。许多衣服,不论品牌,不论在哪里购买,也不令人意外地产于中国。在美国购买的手表,表面上印着小小的日本,表带的金属上却刻着中国。  相似文献   

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编辑手记     
《山茶》2009,(7):36-36
想象一下,如果伽利略还魂,看见巨型麦哲伦望远镜(GMT,上)——在他首次用镜头放大夜空的四个世纪之后,是否认得出这庞然大物,其实是他当年用来发现木星卫星、而今已显寒碜的小镜筒的后世子孙?  相似文献   

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A history of the development of shape indices, going back to some of the earliest formulas proposed by German scholars in the 19th century, groups the various measures in terms of the initial set of data used in their derivation. The author does not approve of indices derived from the perimeter and area of a figure (such as Chorley's lemniscate), linear dimensions and area (Gibbs, Haggett), inscribing and circumscribing circles (Penck, Krumbein), tangential contours and from radial vectors (Boyce and Clark). The author sees greater promise in approaches using the distance from elements of the figure to the perimeter, Bunge's inscribed polygons, and the distance from elements of the figure to the center (Thünen, Blair and Biss). Further work on shape indices is urged with a view to deriving measures that would reflect not only compactness, but also the degree of dissection and contour indentation. The problem is assuming greater significance in light of advances made in picture recognition and processing by computer.  相似文献   

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今年是辛亥革命九十周年,我将辛亥革命浙江光复时的经过与军票发行情形作一简介,与各位同好共同研究、探讨。  相似文献   

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Ihave been following the contacts between the Central Government and the 14th Dalai Lama for years, and wrote many articles discussing the negotiations with some people also interested in the issue. Leafing through materials on my desk at the end of 2002,I felt obliged to say more about the issue.There has, lately, been more information available on the contacts between the Central Government and the 14th Dalai Lama. They have concentrated mainly on the fact that, in 2002, the Central  相似文献   

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