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GRE阅读考试难句解读(二).

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  11.Thus,for instance,it may come as a shock to mathematicians tolearn that the Schrodinger equation for the hydrogen atom is not aliterally correct description of this atom,but only an approximation toa somewhat more correct equation taking account of spin,magneticdipole,and relativistic fects;and that this corrected equation isitself only an imperfect approximation to an infinite set of quantumfield-theoretical equations.

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