英文關鍵字
gun
painting
from
air
compressor
line
symbol
equipment
technology
tool
screw
piston
membrane
centrifugal
industry
diesel
rotary
linear
lamellar
spiral
stapler
car
pressure
tank
cylinder
machine
industrial
mechanical
drill
paint
power
instrument
engine
pump
professional
valve
icon
motion
graphic
animation
pictogram
hd
animated
item
sign
glyph