optical glasses

• 平光眼镜

optical glasses的英文翻译是什么意思，词典释义与在线翻译：

英英释义

名词 optical glass:

1. clear homogeneous glass of known refractive index; used to make lenses

optical glasses的用法和样例：

例句

1. Nowadays, these glasses are known as bifocals.
   如今，这些眼镜被称作双光眼镜。