横向
1
Path of a planet around the sun
4
Disturbance that transfers energy
5
Reddish electrical conductor
7
Our home planet
9
Blocking of light by a celestial body
11
Positive particle in nucleus
纵向
2
Push or pull on an object
3
Group of similar cells
6
Gas form of a liquid
8
Magnetic metallic element
10
Unit of force