選択的
acid
alkali
aluminum
analyzing
bath
beaker
biochemist
biology
biotechnology
boil
boiler
bottle
chemical
chemistry
classroom
clear
closeup
cylinder
discovery
equipment
flask
focus
glass
glove
grille
hand
holder
hot
incubation
instrument
label
laboratory
lid
lighting
liquid
medical
microbiology
rack
reaction
science
scientific
scientist
tank
technician
technology
test
test tube
tube
water