自由变焦眼镜，是由可变焦镜片和调焦装置构成。
Disclosed is freely varifocal glasses, which comprises zoom lenses and a focusing device.
视觉测量系统，可变焦数字照相测量系统等图像测量方法。
Vision measurement system, but image measuring techniques and so on focal variation numeral photography measurement system.
每一个镜片包含一片校正过距离的外镜和一片可变焦的内镜。
Each lens consists of an outer lens with a corrective distance prescription, and a flexible inner lens.
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