英文關鍵字
animation
motion
green
screen
chromakey
encephalogram
icon
logo
simple
illustration
sign
object
symbol
isolated
black
cardiogram
heartbeat
diagnosis
diagnostics
ecg
eeg
ekg
electro
electroencephalogram
medical
medicine
rhythm
signal
treatment
typography
wave
beat
explore
paper
electrocardiogram
clock
stopwatch