“dark-field illumination”的概念、定义、翻译、参考文献-科学参考

单词	dark-field illumination
释义	dark-field illumination [`därk ´fēld ǝ´lüm·ǝ`nā·shǝn] ^OPTICS A method of microscope illumination in which the illuminating beam is a hollow cone of light formed by an opaque stop at the center of the condenser large enough to prevent direct light from entering the objective; the specimen is placed at the concentration of the light cone, and is seen with light scattered or diffracted by it.
随便看	Graeffe's method Graetz number Graetz problem graft graft copolymer graftonite Graham-Cole test Grahamella grahamite Graham's law of diffusion Graham's pendulum grain grain alcohol grain boundary grain diminution grain direction grain drill grainer process grainer salt grain fineness number grain flow grain growth graininess graining grain leather

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