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Digital display constant temperature water bath single-hole biochemical laboratory constant temperature heating teaching instrument
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Synthetic demonstrator of motion Senior high school physics kinematics teaching aids plexiglass teaching instrument
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The longitudinal wave demonstrator demonstrates the relationship between the longitudinal wave wavelength of the mechanical wave and the frequency of the vibration source.
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Ear Washing Ball 30/60/75/90ml Tiger Balloon Tiger Cleaning Ball Ear Suction Ball
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Round bottom flask, flat bottom flask, glass short neck flask, 100 150 250 500ml glass flask, multiple specifications
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Photoelectric effect demonstrator with light source zinc plate micro-current amplifier Senior high school physics experiment equipment teaching instrument
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Primary school students circuit experimental equipment suit fourth grade science electrical experiment box simple circuit experiment suit
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The parallelogram of force is the experimental instrument of physical statics in middle school.
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Mechanics Track Trolley Physics Experiment Aluminum Alloy Equipment Dot Timer Supporting Accessories Middle School Teaching Instruments
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Test tube brush bristle large and medium small size pig brush laboratory cleaning test tube teaching instrument glass tube brush
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Capacitor charging and discharging demonstrator digital display experimental board new curriculum standard middle school physics and electricity teaching aids experimental equipment
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Simple circuit experiment suit primary school science electrical experiment equipment No.1 battery box small lamp holder switch wire
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Electrical Circuit Cassette Electrical Experimental Equipment Primary School Fourth Grade Experimental Materials Physics for Junior 2 Students
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Crucible tongs round steel chrome-plated long handle crucible tongs crucible clamp experimental beaker bottle rack crucible tongs chemical experimental equipment
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electric field line demonstrator physics experiment equipment physics electromagnetism demonstration instrument
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watt-hour meter principle demonstrator teaching board physics and electricity teaching instrument electronic digital display multifunctional intelligent
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Glass beaker with handle 50ml-2000ml high borosilicate beaker with handle high temperature resistant teaching graduated glass
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Digital timer storage type multi-functional new curriculum standard Senior high school physics free fall acceleration teaching instrument
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capacitor charging and discharging demonstrator physical electrostatic field capacitor and capacitance experimental equipment teaching instrument
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