横向
1
Substance with pH below 7
3
Biological catalyst
8
Unit of electric potential
纵向
2
Our home planet
4
Magnetic metallic element
5
Force that attracts objects together
6
Disturbance that transfers energy
7
Precious yellow metallic element
Substance with pH below 7
Biological catalyst
Unit of electric potential
Our home planet
Magnetic metallic element
Force that attracts objects together
Disturbance that transfers energy
Precious yellow metallic element