機器
automobile
automotive
block
cam
camshaft
car
cast
casting
cylinder
design
disassembled
engine
engineering
equipment
factory
foundry
gear
gray
grey
head
heavy
industrial
industry
ingots
iron
machinery
manufacturing
material
mechanic
mechanical
metal
molding
object
part
raw
repair
rough
service
shaft
shape
spare
steel
technology
tool
transportation
valve
vehicle
work