“perturbation”的概念、定义、翻译、参考文献-科学参考

单词	perturbation
释义	perturbation [´pǝr·tǝr`bā·shǝn] ^ASTRONOMY A deviation of an astronomical body from its computed orbit because of the attraction of another body or bodies. ^MATHEMATICS A function which produces a small change in the values of some given function. ^PHYSICS Any effect which makes a small modification in a physical system, especially in case the equations of motion could be solved exactly in the absence of this effect.
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