单词：PSD (power spectral density)
单词：PSD (power spectral density) 相关文章
Why Dwarf Galaxies Lack Star Power In a study in the journal Nature, researchers show that the relative lack of star density in dwarf galaxies need not conflict with standard cosmological models if you include the blast effects of supernovae. Karen H
60秒科学
Ukraine and Russia are expressing concern about their image as reliable gas suppliers amid growing gas shortages in Europe, for which Moscow and Kyiv are blaming each other. European officials warn of a crisis across region as a dispute between Russ
VOA标准英语2009年(一月)
Chicagos Argonne Lab Developing Battery of the Future CHICAGO In 2012, the Department of Energys Office of Science awarded a $120 million grant to a new technology center focused on battery development - headquartered at Argonne National Laboratory i
VOA标准英语2014年(七月)
HONG KONG, Jan. 18 (Xinhua) -- It was a big mistake for the International Monetary Fund (IMF)(国际货币基金) not to include the Chinese currency, renminbi (RMB), in the international reserve basket in its recent reevaluation of the content of SD
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Afghanistan has become the first country to map its natural mineral resources using an advanced remote sensing technique known as hyperspectral imaging. The mapping, a collaborative effort between the U.S. Geological Survey and the Afghan Geological
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Yet dost thou darker half, rock me with a prouder, if a darker faith. 然而，你那更加难解的半个身子，却以一种即使不是更加难解的、也是更加自豪的信念来颠簸我。 All thy unnamable imminglings float beneath me her
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