英文關鍵字
aged
anode
aquarium
battery
cathode
chemical
chemistry
corrosion
corrosive
damaged
effect
electricity
electrode
electrolysis
energy
equipment
experiment
fresh
salt
graphic
grunge
industry
iron
knife
machete
material
metal
metallic
oxidation
oxide
oxidized
physics
process
protection
reaction
reduction
rust
rusted
rusty
science
sodium
chloride
stain
steel
texture
voltage
water
undergoing
remove