英文關鍵字
akbars
analysis
background
beaker
bottle
chemical
chemist
chemistry
closeup
concept
crude
diesel
dimensional
drop
element
energy
equipment
fill
flow
fuel
gas
gasoline
high
industry
instrument
lab
laboratory
liquid
number
oil
orange
petrol
power
refinery
sample
scale
science
tatarstan
technology
test
thin
tube
wall
white