optical glass

短语

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词形变化

optical glasses 复数

释义与例句

n.
  1. 1.

    A class of glass used to create optical lenses, such as that for spectacles or spyglasses

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词汇关系

名词

上位词 1

glass

下位词 2

crown glass flint glass

词源

From optical + glass from being the type of glass used for optics.

来源：wiktionary