選択的
analysis
background
beaker
biochemist
biology
biotechnology
blue
chemical
chemistry
class
closeup
concept
development
discovery
equipment
experiment
flask
fluid
fluids
glass
glassware
industry
instrument
laboratory
liquid
medical
medicine
microbiology
objects
pattern
person
pharmacology
pharmacy
preparation
reactants
reagents
research
sample
science
scientific
solution
substance
technology
test
tool
toxic
tube
virus
water