英文關鍵字
oxygen
pulse
health
finger
saturation
hand
blood
technology
patient
care
equipment
heartbeat
medicine
device
portable
man
measurement
heart
monitoring
closeup
sensor
male
modern
display
medical
level
coronavirus
rate
hearth
tool
check
hospital
examination
young
tech
pandemic
machine
meter
disease
control
gadget
fingertip
assistance
cardiology
measure