英文關鍵字
1080p
1920x1080
auto
automobile
automotive
bearing
bolt
car
clip
combustion
component
details
drive
energy
engine
engineering
equipment
gas
gearshift
generate
generator
hdv
heavy
hood
industrial
industries
internal
iron
machinery
mechanics
mechanism
motor
objects
oil
part
piston
power
propulsion
spare
steel
technology
transmission
transportation
under
valve
vehicle
video