機器
around
auto
automobile
bolt
cap
car
cross
detail
differential
direction
drawing
drive
driver
engine
engineering
fixation
flexibility
gear
heavy
hole
industrial
industry
manufacture
manufacturing
mechanical
metal
metalwork
motorcar
nut
part
power
rear
rod
screw
set
shaft
silver
silvery
spare
steel
technology
transmission
transport
transportation
truck
turn
turning
universal
vehicle