横向
1
Gas form of a liquid
3
Tectonic landmass section
4
Mass per unit volume
纵向
2
Particle of light
5
Path of a planet around the sun
6
Reddish electrical conductor
7
Disturbance that transfers energy
8
Our home planet
Gas form of a liquid
Tectonic landmass section
Mass per unit volume
Particle of light
Path of a planet around the sun
Reddish electrical conductor
Disturbance that transfers energy
Our home planet