横向
1
Mass per unit volume
3
Push or pull on an object
5
Unit of energy
7
Unit of electric potential
纵向
2
Unit of force
4
Icy body with a tail near the sun
6
Gas essential for breathing
8
Substance with pH above 7
Mass per unit volume
Push or pull on an object
Unit of energy
Unit of electric potential
Unit of force
Icy body with a tail near the sun
Gas essential for breathing
Substance with pH above 7