英文關鍵字
analysis
background
beaker
black
blue
bottle
chemical
chemistry
closeup
crude
development
energy
equipment
exam
experiment
flask
fuel
gas
gasoline
glass
gloves
hand
lab
light
liquid
material
oil
pour
power
research
room
rubber
sample
science
scientific
slow
storage
study
tatarstan
tatneft
test
thin
tube
white
worker