選択的
analysis
background
biochemistry
biology
biotechnology
blue
chemical
chemistry
close
closeup
color
development
drop
dropper
dropping
drug
equipment
exam
experiment
flask
fluid
glass
glassware
health
industry
laboratory
liquid
medical
medicine
microbiology
nobody
pharmaceutical
pharmacy
pipette
purple
research
sample
science
study
substance
technology
test
tool
toxic
transparent
tube
tubes
violet
virus