英文關鍵字
sine
wave
science
curve
background
line
waving
design
mathematical
oscillates
wavelength
physics
magnitude
time
high
low
sound
waveform
trigonometry
negative
positive
loop
pattern
analog
backdrop
effect
frequency
glow
animation
animated
noise
digital
measure
measurement
monitor
distorted
distortion
plexus
glitter
lights