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"bifocal eyeglasses"
以上来源于: WordNet
ADJ having two different focuses 双聚焦的 [optics]
Mrs. Bierce wears thick bifocal lenses.
比尔斯夫人戴着一副厚厚的双光眼镜。
《柯林斯英汉双解大词典》
HID car bifocal lens.
HID汽车双光透镜。
youdao
This paper analyzes the monocular stereo vision algorithm based on bifocal imaging.
对单眼立体视觉的双焦成像算法进行了分析。
Benjamin Franklin: statesman, author, postmaster, inventor of the bifocal, the lending library and the Franklin stove.
FORBES: Magazine Article
Christine McCleary leaves glasses in different prescriptions and combinations in strategic spots around the house, including bifocal sunglasses for driving and two strengths of computer glasses for multitasking.
WSJ: How Technology Tries Our Eyesight
In the 1780s, Benjamin Franklin invented the bifocal.
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