Simple Machines

ساديون مشينون

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Wheel and Axle

ڦيٿو ۽ سرائي

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Pulleys

چرخيون

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Gears

گراريون (گيئر)

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Bicycle

سائيڪل

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Chapter review

باب جو اختصار

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Review Questions

دور جا سوال

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