原级：bifocal
bifocals 基本解释
bifocals的近义词
名词双重焦点透镜，双光眼镜( bifocal的名词复数 )
bifocals 网络解释
1. 双光眼镜 双焦镜片 双筒望远镜玻璃：bifocallens 双焦点透镜 双焦镜 双焦透镜 | bifocals 双光眼镜 双焦镜片 双筒望远镜玻璃 | bifocalsegment 双焦面
2. 双光眼镜：nowadays 现在 | bifocals 双光眼镜 | develop 研制
3. 双焦点; 双光眼镜 (名)：bifocal 双焦点的 (形) | bifocals 双焦点; 双光眼镜 (名) | biforate 有双孔的 (形)
bifocals 双语例句
1. The most common way is to change glasses with magnifying lenses and stronger bifocals.
最常见的方法是改变眼镜，放大镜镜头和更有力的
2. Occasionally, children who have crossed eyes may need to have bifocals to help control the crossing.
偶尔有内斜视的孩子会需要双光镜来控制内斜。
3. Nowadays, these glasses are known as bifocals.
如今，这些眼镜被称作双光眼镜。
4. I rang the bell, and a geeky, middle-aged man in bifocals stuck his head around the door.
我按响了门铃，一个头上架着变焦眼镜，看起来一付科技痴汉模样的中年男子从门后探出头来。
bifocals
5. No history of spectacles would be complete without some mention of Benjamin Franklin, who invented bifocals in the 1780s.
如果?有 Benjamin Frankin 在1780年代?明的?近??用眼?，那么???史的奇?也?不能?上??的句?。
6. Calculation of minimum central thickness of fused - bifocals
论熔合双光镜最小中心厚度的计算方法
bifocals 词典解释The form bifocal is used as a modifier. bifocal 用作修饰语。
1. 双光眼镜；远近两用眼镜
Bifocals are glasses with lenses made in two halves. The top part is for looking at things some distance away, and the bottom part is for reading and looking at things that are close.
e.g. Mrs Bierce wears thick bifocal lenses.
比耶尔斯太太戴着厚厚的双光眼镜。
bifocals 英英释义
noun
1. eyeglasses having two focal lengths, one for near vision and the other for far vision
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