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Battery box No. 1, No. 5 battery card holder circuit connection box series and parallel student physics experiment equipment teaching

Sheep fur rubber stick fur teachers demonstrate friction electrification electrostatic glass stick silk physics teaching experimental instrument equipment

Heat conduction demonstrator copper, iron and aluminum heat conduction comparison device junior high school physics teaching experimental instrument equipment teaching aids

Strip magnet horseshoe-shaped U-shaped circular magnet teaching students magnetic steel magnet large strong magnetic iron powder chip box

Object conductivity experiment box primary school science teaching instruments and equipment verify the conductivity of different materials

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J2150 Object Center of Gravity Demonstrator 7 Kinds of Aluminum Plate Physics Teaching Instruments Equipment for the Center of Gravity of Plate Objects

Physical balance 500g 0.02g mechanical balance precision attached weight box physical teaching instrument experimental equipment

Electric field line demonstrator 23053 physical electromagnetism each point field strength size direction demonstration power line experiment 5 pieces

Ampere force demonstrator pointer-type magnetic field acting on current experimental equipment energized wire physics teaching instrument

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Interference diffraction experiment physics teaching instrument projection mechanical oscillator frequency adjustable of 2208 waves in wave generating tank

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The size of the material pressure of the nail plate experiment is related to the contact surface of the object.

Demonstration of the original auxiliary coil Faraday electromagnetic induction coil soft iron core copper coil physics electromagnetic experimental equipment

Mechanical Trolley Inclined Trolley with Paper Tape Card 6-Hole Solid Wood Slider Metal Bucket Physical Experiment Accessories

Forced Vibration and Resonance Demonstrator 22026 Senior high school New Curriculum Standard Physical Mechanics Experimental Teaching Demonstration Equipment

Electromagnetic relay demonstration board teachers use physical electricity electromagnetic effect normally open normally closed circuit experimental instrument equipment

Physical and mechanical experimental equipment for demonstration of flat throwing free falling motion of two steel balls in 21065

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Centrifugal Track Catching Ball Net Roller Coaster Model Inertia Centrifugal Force Experiment Physical Mechanics Experiment Teaching Instrument Material

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The demonstrator of the left and right hand rule explores the motion-induced current in the conductor magnetic field. Ampere force experiment current effect

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Lenz's Law Demonstrator Open Closed Aluminum Ring Conductor Cutting Magnetic Induction Line Induced Current Physics Teaching Instrument

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