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it was made of simple macines and pullies
They usually work by some effort you use to pull things
Simple machines are basic devices or mechanical powers on which other machines are based (eg, lever, wedge, pulley, wheel and axle, inclined plane, screw).
All screws are used as simple machines.
I think screws but there's probably more. Try googleing it.(that's what i did)
made sowing macines
simple machines.
screws, inclined planes,
Simple cuboidal cells are often involved in adsorption and secretion.
you have to get the spare parts. salvage macines with your wrench for spare parts
it is simple. take out the screws on the back.
pulley,lever,gears,screws