選択的
analysis
background
biochemistry
biotechnology
chemical
chemistry
close
closeup
color
development
discovery
dropper
dropping
drug
equipment
exam
experiment
flask
fluid
glass
glassware
green
health
lab
laboratory
light
liquid
medical
medicine
microbiology
nobody
pharmaceutical
pharmacy
pipette
reagents
research
sample
science
scientific
study
substance
technology
test
tool
toxic
transparent
tube
tubes
virus