英文關鍵字
analyzer
button
calibration
changing
chip
circuit
closeup
computer
device
digital
display
dof
dual
electrical
equipment
frequency
graphic
hitech
industry
instrument
instrumentation
lab
laboratory
meter
microchips
mode
monitor
multimeter
nobody
object
offset
oscillogram
oscillograph
oscilloscope
power
sample
science
screen
setting
shallow
signal
spectrum
supply
time
tool
wave
wires
zoom