Square coil enameled wire ring magnetic electric material junior high school physics electromagnetism experiment equipment cutting magnetic induction wire
0.0
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Teaching Demonstration meter J0401 ammeter voltmeter flow detection meter AVG multi-purpose demonstration meter
5.0
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Huali Education Junior High School Physics Complete Set of Experimental Equipment Electromagnetics Grade 89 Scientific Circuit Electrical Experiment Box
4.7
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Huali teaching aids H-YS5 junior high school physics electromagnetism experiment device material full set of scientific experiment circuit experiment box
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Junior High School Physics Electromagnetism Experimenter Materials Complete Set of Scientific Experiment Circuit Experiment Box
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Huali teaching aids H-YS9 junior high school physics electromagnetism experiment device material full set of scientific experiment circuit experiment box
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Factory Direct 0401 Demonstration Meter Teaching Instrument Metering Instrument
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DC ammeter voltmeter A meter V meter pointer voltmeter ammeter physical experiment equipment teaching instrument
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Hand Battery Human Body Power Generation Community Popular Science Desktop Popular Science Exhibits Campus Science and Technology Museum Popular Science Children's Palace
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Projection galvanometer 0422 junior high school physics experiment equipment electrical instrument Middle School teaching instrument
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ProJection Voltmeter Grade 2.5, 3v15v J15013 ProJection Voltmeter Physical Equipment Teaching Instrument
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J0401 Demonstration Electricity Meter Measuring Dc Current Dc Voltage Ophthalmometer Magnetic Electric System Teaching Instrument Device
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J0401 demonstration electric meter measuring DC current DC voltage galvanometer magnetoelectric department teaching instrument device
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J0401 demonstration electric meter measuring DC current DC voltage galvanometer magnetoelectric department teaching instrument device
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Demonstration meter A- V-G physics teaching experiment teaching demonstration meter junior and senior high school Electrical Experiment instrument
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Physical electricity teaching demonstration magnetic absorption large electric meter ammeter voltmeter sensitive ammeter current meter AVG meter
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Magnetic large demonstration ammeter voltmeter sensitive galvanometer physics and electricity experiment teaching instrument teaching aids
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Direct supply teaching instrument high school physics experiment equipment J0401 pointer ammeter sensitive voltmeter ammeter
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Demonstration of electric meter magnetic voltmeter ammeter teacher teaching demonstration of electric meter physical circuit experimental instrument
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Junior high school physics electromagnetic experiment equipment full set of scientific experiment circuit experiment box second grade third grade
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Junior high school physics electromagnetic experiment equipment full set of scientific experiment circuit electrical experiment box second day third day
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Voltmeter DH80 Dc Bidirectional Voltage Frequency Meter Pointer Meter Ammeter
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AC ammeter CD-80 CQ-80 DH-80 50A 100/5 500/5 pointer ammeter
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Jiyi DH80 pointer AC voltmeter mechanical watch head transparent shell AC current measuring instrument
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Wholesale DH80 AV type AC meter voltage ammeter pointer type current voltmeter through meter overload meter
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Supply Pointer Ac and Dc Meter BEW Export Type Transparent Shell 15a 500V DH-80 Current Voltmeter
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Hydrogen fuel cell demonstrator J26020 Chemical energy of hydrogen and oxygen into electrical energy Water electrolysis experimental device
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26021 hydrogen and oxygen fuel cell tester new curriculum standard teaching instrument chemical instrument for high school students and teachers
0.0
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Hydrogen Fuel Cell Experimenter Hydrogen Fuel Demonstrator Water Electrolysis Hydrogen Oxygen PEM Proton Membrane Senior high school Chemistry
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Hydrogen fuel cell demonstrator converts the chemical energy of hydrogen and oxygen into electrical energy Senior high school chemical laboratory equipment
0.0
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Hydrogen Fuel Cell Water Electrolysis Experiment Hydrogen and Oxygen Demonstrator Accessories High School Chemistry Equipment Teaching Equipment
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Hydrogen Fuel Cell Experimenter Hydrogen Fuel Demonstrator Water Electrolysis Hydrogen Oxygen PEM Proton Membrane Senior high school Chemistry
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26021 hydrogen fuel cell experimental device water electrolysis experimental device electrolyzed water to produce hydrogen oxygen PEM proton membrane
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Hydrogen Fuel Cell Experimenter Hydrogen Fuel Demonstrator Water Electrolysis Hydrogen Oxygen PEM Proton Membrane Senior high school Chemistry
0.0
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Hydrogen fuel cell tester hydrogen fuel demonstrator water electrolysis hydrogen production oxygen PEM proton membrane high school chemistry
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