جستجو به دنبال: عنوان نویسنده موضوع سری شماره رده که شروع می شود با: 10 20 30 50 100 در صفحه < سرفصل 10 قبل سرفصل 10 بعد > مرور سرفصلها # Simple machines. 71 SEE ALSO narrower term: Inclined planes. 18 SEE ALSO narrower term: Levers. 25 SEE ALSO narrower term: Pulleys. 25 SEE ALSO narrower term: Screws. 14 SEE ALSO narrower term: Wedges. 18 SEE ALSO narrower term: Wheels. 32 Simple machines -- Engineering. 2 Simple machines -- Experiments. 10 Simple machines -- Experiments -- Juvenile literature. 9 Simple machines -- Fiction. 3 Simple machines -- Juvenile fiction. 5 Simple machines -- Juvenile films. 10 Simple machines -- Juvenile literature 142 Simple machines -- Popular works. 1 Simple machines -- Programming -- Juvenile literature. 2 10 20 30 50 100 در صفحه < سرفصل 10 قبل سرفصل 10 بعد >