横向
1
Substance with pH below 7
4
The Red Planet
5
Infectious microscopic agent
7
Form of thermal energy
纵向
2
Molten rock beneath Earth surface
3
Preserved remains of ancient life
4
Measure of matter in an object
6
Amplified beam of light
Substance with pH below 7
The Red Planet
Infectious microscopic agent
Form of thermal energy
Molten rock beneath Earth surface
Preserved remains of ancient life
Measure of matter in an object
Amplified beam of light