英语释义
1
n a transparent optical device used to converge or diverge transmitted light and to form images
2
n a transparent optical device used to converge or diverge transmitted light and to form images
3
n genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils
4
n (metaphor) a channel through which something can be seen or understood
5
n biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina
6
n electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons