round-top bifocal lens是什么意思，round-top bifocal lens的翻译，round-top bifocal lens音标、读音、用法和例句

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round-top bifocal lens是什么意思，round-top bifocal lens的翻译，round-top bifocal lens音标、读音、用法和例句_淳朴汉英词典

round-top bifocal lens

基本解释

专业释义

毉葯科學