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YouTube on MSN5 小时

How to Make 3.7 to 220v Mini Inverter

Learn how to transform a 3.7V battery to power a 220V device with this step-by-step mini inverter tutorial. Discover the ...
YouTube on MSN2 天

How To Make Mini Water Pump Supply Rice Farm - DIY Mini Science Project

In this captivating DIY science project, learn how to make a mini water pump to supply a rice farm efficiently. Perfect for ...