機器
agricultural
agriculture
antique
building
car
cartoon
combine
construction
design
drawing
ecology
element
energy
farm
farming
field
figure
flour
graphic
home
house
husbandry
hydropower
icons
kinetic
logo
mill
nature
netherland
old
pickup
picture
power
retro
river
set
sign
symbol
tower
turbine
vector
vintage
water
waterwheel
wheel
wind
windmill
wood
wooden