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单词 crown glass
释义
crown glass
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WORD FAMILY
crown glass
USAGE EXAMPLES
A guy in the neighborhood told me he remembered workmen breaking the 250-year-old crown glass of the windows on rocks.
Slate(Sep 20, 2011)
Transparent media vary in their dispersive powers; for example, carbon disulphide has more than three times the dispersive power of crown glass.
Various, The New Gresham Encyclopedia—Volume...(2011)
The old staple trade of the making of crown glass, begun in 1777, lapsed some 70 years afterwards when the glass duty was abolished.
Various, Encyclopaedia Britannica, 11th Edit...(2010)
1
n optical glass of low dispersion and low refractive index
Syn|Hyper
optical crown, optical crown glass
optical glass
clear homogeneous glass of known refractive index; used to make lenses
2
n a glass blown into a globe which is later flattened and spun to form a disk
Hyper
glass
a brittle transparent solid with irregular atomic structure
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更新时间:2024/12/23 20:37:06