横向
1
Blocking of light by a celestial body
2
Particle of light
3
Smallest unit of an element
5
Reddish electrical conductor
10
Force that attracts objects together
纵向
2
Glass that splits light into spectrum
4
Biological catalyst
6
Natural satellite of Earth
7
Amplified beam of light
8
Center of an atom or cell
9
Gas essential for breathing