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Model mechanical clock principle escapement structure pendulum clock 3D printing teaching model technology technology
- Model #: WD-F3478
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8-coil circular cyclotron accelerator youth toy high-tech intelligence science experiment model
- Model #: WD-F3942
- $490.72 –
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Mechanical model 3D printing escapement structure principle device spring power gear transmission teaching model
- Model #: WD-F3119
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Perpetual motion machine model ball cycle handmade small maker
- Model #: WD-F3462
- $80.01 –
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Mechanical design model Spring power gear set escapement structure Pendulum clock principle teaching model
- Model #: WD-F3343
- $63.23 –
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Simple mechanical pendulum clock principle model 3D printing parts assembly teaching large pendulum gear set
- Model #: WD-F3255
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Miniature spiral wind turbine model breeze start science experiment power generation lighting
- Model #: WD-F8229
- $87.00 –
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