横向
1
Our home planet
5
Preserved remains of ancient life
6
Chemical element in table salt
纵向
2
Unit of electric potential
3
Unit of energy
4
Substance with pH below 7
7
Reddish electrical conductor
8
Amplified beam of light
Our home planet
Preserved remains of ancient life
Chemical element in table salt
Unit of electric potential
Unit of energy
Substance with pH below 7
Reddish electrical conductor
Amplified beam of light