選択的
analysis
beaker
biochemistry
biology
biotechnology
blue
chemical
chemistry
closeup
color
development
drop
drug
equipment
exam
experiment
flask
fluid
glass
glassware
health
industry
instrument
lab
laboratory
liquid
medical
medicine
microbiology
nobody
pharmacy
pipette
reagents
science
scientific
study
technology
test
toned
tool
toxic
transparent
tube
tubes
virus
volume
water