英文關鍵字
acid
analyzing
assistant
balance
boil
boiling
chemical
chemist
chemistry
close
closeup
conducting
control
cosmetic
cosmetological
development
equipment
evaporating
examining
experiment
expert
expertise
lab
laboratory
level
liquid
litmus
measure
monitoring
paper
perfume
ph
process
product
production
reaction
reflection
research
researcher
sample
science
scientific
scientist
studying
substance
test
testing
tube
up