英语词汇“base curve”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	base curve
释义	base curve curve, base (BC) 1. The shallower principal meridian of a toroidal surface of a toric lens. The other meridian of the toroidal surface which has the maximum power is called the cross curve. 2. In a meniscus lens, the shallower of the two surfaces. 3. Of a range of lenses of different powers, a surface power common to all the lenses in that range. See periscopic lens; back optic zone radius. AcronymsSeeBC
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base curve