“Fresnel lens”的概念、定义、翻译、参考文献-科学参考

单词	Fresnel lens
释义	Fresnel lens [frā`nel `lenz] ^OPTICS A thin lens constructed with stepped setbacks so as to have the optical properties of a much thicker lens.
随便看	single completion single-compound explosive single crystal single-current transmission single cusp of the first kind single cusp of the second kind single-cut file single-cycle mountain single-degree-of-freedom gyro single density single-drift flight single-edged push-pull amplifier circuit single-effect evaporation single-end amplifier single-ended single-ended ferry single-ended Q machine single-ended signal single-ended spread single-event upset single-frequency duplex single-frequency simplex single-gun color tube single-hand drilling single-heading flight

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