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convexo concave lens 凸凹透镜
Just as a double convex lens enlarges, so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
Just as a double convex lens enlarges,so a double concave lens reduces. 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
A concave lens causes rays to diverge as though they are coming from a focal point. 发散透镜使光线分开,就好象从焦点上发出来的那样。
The surfaces of the concave lens may be proportioned so as to aberrate exactly equal to the convex lens. 凹透镜的表面可以进行均匀处理，以便使像差完全与凸透镜一致。
Effects of concave lens on eyes of guinea pig 凹透镜对豚鼠眼生长及屈光发展的影响
massager,massagist,concave lens,dent,dented,dirge，按摩师;凹透镜;凹陷;凹面;哀乐，安眠药，案板
A METHOD IN DETERMINING THE FOCAL LENGTH OF A CONCAVE LENS 一种测量凹透镜焦距的方法
A Method for Measuring the Focal Length of Thin Concave Lens 一种测量薄凹透镜焦距的新方法
A METHOD OF MEASURING PRECISELY THE RADIAL OF A CONCAVE LENS 一种较精确测量凹透镜球面半径的方法
Measuring the focal length of concave lens using collimator 利用准直管法测凹透镜的焦距
convexo concave adj. 一面凸一面凹的
Concave on both surfaces;biconcave.Used of a lens. 双面均凹进的；双凹的。用于指透镜
This lens can magnify 20 diameter. 这个透镜能放大20倍。
His figure looks very funny in the concave mirror. 他的样子在凹镜里显得非常可笑。
An indented or concave surface or area. 凹陷，洼地凹的表面或地区
Just as a double convex lens enlarges, so a double concave lens reduces 正象双凸透镜可以放大那样，双凹透镜也可以缩小。
Some adjustment of the lens may be necessary. 可能有必要调节一下镜头。
Do you have soft contact lens care product? 有没有软性隐型眼镜保养用品？
He uses lens to make things appear clearer. 他用镜片以便看东西更清楚些。