英文關鍵字
abstract
abstraction
atom
ball
bass
beam
black
blue
current
danger
dangerous
education
electric
electricity
electronics
energy
experiment
flame
generator
glass
globe
glow
glowing
illumination
lamp
light
lightning
luminescence
music
negative
neon
nuclear
pink
plasma
plasmatron
positive
power
purple
ray
reaching
red
risk
school
science
scientific
speaker
sphere
tech
technology
touch