“Gaussian optics”的概念、定义、翻译、参考文献-科学参考

单词	Gaussian optics
释义	Gaussian optics [¦gau̇·sē·ǝn `äp·tiks] ^OPTICS An approximation which describes rays which are very close to the axis of an optical system and are nearly parallel to this axis, so that only the linear terms of Taylor series for the distance of a point from the axis or the angle which a ray makes with the axis need be considered. Also known as first-order theory.
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