英文關鍵字
akbars
analysis
background
beaker
black
bottle
chemical
chemist
chemistry
clear
closeup
concept
crude
diesel
dimensional
element
energy
equipment
examine
fuel
gas
gasoline
high
industry
instrument
lab
laboratory
lift
liquid
oil
petrol
plant
pour
power
refinery
sample
science
tatarstan
technology
test
tube
water
white