英文關鍵字
bright
burning
construction
danger
effort
equipment
factory
fallow
fire
flame
flowing
fluid
foundry
fumes
furnace
glowing
gold
heavy
hot
huge
industry
iron
ladle
light
liquid
macro
manufacturing
melting
metal
metallurgy
mill
ovenproof
overweight
pig
protective
safety
shield
smelting
smoke
sparks
steel
technology
temperature
transfusion
working