单词 | conical refraction |
释义 | > as lemmasconical refraction conical point: a singular point on a surface at which the tangent lines form a cone. †conical section (also conical line): = conic adj. section (obsolete). conical projection: a method of projection (in maps, etc.) in which a part of a spherical surface is projected upon the surface of a tangent or secant cone which is then ‘developed’ or unrolled into a plane. conical perspective: that in which objects are delineated as if projected upon the surface of a vertical cone from a point in its axis, the surface being then unrolled into a plane. conical refraction: refraction in which a ray is converted into a hollow cone of light.extracted from conicaladj.conical refraction angle of refraction, axis of refraction, index of refraction, plane of refraction, etc.; conical refraction, double refraction, seismic refraction, etc.: see the first element.extracted from refractionn.< as lemmas |
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