英文關鍵字
aged
anode
cathode
chemical
chemistry
closeup
corroded
corrosion
corrosive
damaged
effect
electricity
electrode
electrolysis
equipment
experiment
fresh
salt
grunge
industry
iron
material
metal
metallic
old
oxidation
oxide
oxidized
physics
process
protection
reaction
reduction
rust
removal
rusted
rusty
science
sodium
chloride
stain
steel
surface
texture
vintage
voltage
water
wood
items
undergoing
aquarium
remove