The side of a lens is curved. The middle part of some lenses is thicker than the edge. In other lenses, the edge is thicker than the middle part.
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In the second experiment, 50 students were similarly divided into two groups, this time in equally bright rooms, but one group was given sunglasses to wear and the other glasses with clear lenses.
在第二个实验中,50名学生被同质地分为两个组,这一次两组被试都在光线强度相同的明室中进行实验,其中一组被试被要求佩戴墨镜,另一组则佩戴透镜。
Luceen appears naturally in a tasty fruit that grows on the island of Bonopia, and very few inhabitants of that island wear eyeglasses or other corrective lenses.
Bonopia岛生长的一种美味水果就含有luceen,该岛居民很少有人戴眼镜或其他矫正镜片。
The build quality is ok and in line with other consumer grade Nikkor lenses.
工艺品质不错,和其它的消费级别尼康镜头保持一样的水准。
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