单词：Patterson function
单词：Patterson function 相关文章
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The world's first self-destructing novel is being offered by James Patterson. 世界上第一部自毁小说问世，作者是美国作家詹姆斯帕特森（James Patterson）。 For ?200,000 one fan will get 24 hours to read his latest book before
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So who is making it? We arethat is to say, many of our large corporations are still making it at their plants overseas. It will not be banned in Third World countries until 2010. 那么，是谁在生产含氯氟烃？是我们──那就是说，许多
万物简史
By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo
万物简史
His main work done, Patterson now turned his attention to the nagging question of all that lead in the atmosphere. He was astounded to find that what little was known about the effects of lead on humans was almost invariably wrong or misleadingand no
万物简史
As always, however, nothing was quite as straightforward as such a breezy description makes it sound. Meteorites are not abundant and meteoritic samples not especially easy to get hold of. Moreover, Brown's measurement technique proved finicky in the
万物简史
But there were many technical difficulties to overcome. Holmes also neededor at least would very much have appreciatedsophisticated gadgetry of a sort that could make very fine measurements from tiny samples, and as we have seen it was all he could d
万物简史
10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur
万物简史
LOS ANGELES In many western cultures, Santa Claus is traditionally depicted as Caucasian man with a white beard in a red suit. But around the United States, this symbol of Christmas comes in many colors. In one Los Angeles shopping mall non-tradition
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