英文關鍵字
complex
twisting
handle
dark
blue
science
man
electronic
look
hand
face
academic
adjust
device
closeup
laser
installation
beam
green
glass
research
laboratory
equipment
light
technology
education
lens
experiment
engineering
power
microscope
development
instrument
projection
accuracy
machine
refraction
futuristic
control
physics
reflection
high
steel
supply
energy
system
shiny
fluorescent
optical
magnification