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GRE NO题难句摘录及分析(二).

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  11.Thus,for instance,it may come as a shock to mathematicians to learn that the Schrodinger equation for the hydrogen atom is not a literally correct description of this atom,but only an approximation to a somewhat more correct equation taking account of spin,magnetic dipole,and relativistic fects;and that this corrected equation is itself only an imperfect approximation to an infinite set of quantum field- theoretical equations。

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