“trifocal spectacle”的概念、定义、翻译、参考文献-科学参考

单词	trifocal spectacle
释义	trifocal spectacle 三焦眼镜片
随便看	holder holderbat holder for die holder for value holder in bad faith holder in due course holder of license holder-on holder spring holder-up hold facility holdfast hold-fast coupling hold file hold for delivery on request hold frame hold harmless agreement hold-harmless agreement hold-in hold in check hold in custody holding holding action holding anode holding area

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