横向
1
Measure of matter in an object
3
Second lightest element
6
Amplified beam of light
纵向
1
Molten rock beneath Earth surface
2
Ball of burning gas in space
4
The Red Planet
5
Unit of electric potential
7
Reddish electrical conductor
Measure of matter in an object
Second lightest element
Amplified beam of light
Molten rock beneath Earth surface
Ball of burning gas in space
The Red Planet
Unit of electric potential
Reddish electrical conductor