音标：[ˌbaɪ'fəʊkl] ；

adj. 双焦点的
n. 双重焦点透镜；双光眼镜

bifocal的用法和样例：

例句

用作形容词(adj.)

Some manufacturers are also developing bifocal IOLS, which may eliminate the need in some patients for prescription glasses after surgery.有的制造商在研究双焦点的人工晶体，这可能会让一些手术后需要用处方眼镜的患者不再需要眼镜。

词汇搭配

bifocals远近视两用眼镜...
bifocal spectacles[医] 双焦点眼镜...
bifocal demand pacemaker双灶性按需起搏器...
bifocal chord of a quadric二次曲面的两焦点弦...
bifocal glass双焦眼镜,双光眼镜,...

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