横向
1
Unit of electric potential
4
Chemical element in table salt
5
Tectonic landmass section
7
Path of a planet around the sun
纵向
2
Nerve cell in the brain
3
Mass per unit volume
5
Positive particle in nucleus
6
Second lightest element
Unit of electric potential
Chemical element in table salt
Tectonic landmass section
Path of a planet around the sun
Nerve cell in the brain
Mass per unit volume
Positive particle in nucleus
Second lightest element