機器
accessories
alloy
auto
automobile
block
camshaft
car
carving
crank
crankshaft
cylinder
diagnostic
energy
engine
engineering
four
garage
gasoline
gear
generator
head
industrial
industry
iron
material
mechanic
mechanical
metal
metallic
motor
new
old
open
part
piston
power
repair
shaft
shiny
sixteen
spare
teamwork
technology
tooth
transmission
unit
valve
vehicle
workshop