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单词 θ64979
释义
the world > physical sensation > sight and vision > optical instruments > materials > [noun] (6)
mirror glass1440

A mirror; (also) glass with a reflective coating, as used for mirrors. Also figurative.

looking-glassa1631

Glass with a reflective coating, as used for mirrors. Cf. mirror glass, n. Now rare.

selenite1668

Mineralogy. Sulphate of lime (gypsum) in a crystalline or foliated form. Also, a slip or film of this mineral used for the polarization of light.

pebble1688

A variety of colourless transparent rock crystal (quartz), formerly used instead of glass in spectacles; a lens made of this. Cf. compounds 1b. Obs

optical glass1797

Glass of specially high homogeneity manufactured for use in optical components.

tain1858

(See quot. 1858.)

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