DIY Machines Gears and Pulleys - 搜索图片

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YouTube
Homemade pulley system - YouTube

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youtube.com > Rany Homemade
Making Pulleys For Homemade Lathe Machine
YouTube · Rany Homemade · 2739 次播放 · 2023年9月22日
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YouTube > DH Hacks
How to make a PULLEY MACHINE with cardboard at home
YouTube · DH Hacks · 72.4万次播放 · 2017年11月17日
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Pin by magic libero on DIY Miniature Doubl…
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katrollen Simple Machine Projects, Ma…
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A simple pulley system | Simple machine projects, …

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Make a DIY Pulley System [Simple Machine Science] | Kids Activities ...

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