燃やす
abstract
acid
alertness
area
background
black
brightly
caustic
caution
chemical
chemistry
computer
corrosion
corrosive
danger
dangerous
element
enterprises
equipment
factory
forbidden
hand
hazard
hazardous
illustration
industry
interface
isolated
label
liquid
oxidant
oxidizer
power
protection
risk
rudeness
safety
shape
sign
substance
symbol
test
triangle
tube
warning
weapon
white
yellow