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青华科教仪器有限公司
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dna replication and protein demonstrator teaching demonstration magnetic biology knowledge popularization learning
CN ¥ 210
goggles anti-fog anti-splash fully enclosed goggles dustproof labor protection transparent isolation eye mask
CN ¥ 12
qinghua new curriculum standard teaching geometric film graphics primary school teaching aids mathematical graphics math teaching pieces children‘s school supplies
CN ¥ 30
oral arithmetic simulator teaching aids primary school mathematics teaching instrument arithmetic counting addition subtraction multiplication and division algorithm demonstration
CN ¥ 16
leverage ruler and bracket physical mechanics teaching aids experimental instrument teaching instrument teaching demonstration balance
CN ¥ 10
gasoline engine model internal combustion engine model junior and senior high school physics science and education instrument thermal experimental apparatus
CN ¥ 69
Battery Box （Separate Type） no. 1 Battery Series Parallel Physical Experiment Science and Education Instrument Science
CN ¥ 7
frog embryo development model junior high school high school biology teaching aids science and education instrument teaching demonstration use
CN ¥ 75
camera model convex lens imaging experiment primary school science optics teaching instrument physics
CN ¥ 65
qinghua dna model biological gene chain double helix chain spherical protein model school teacher teaching demonstration
CN ¥ 180
oral arithmetic simulator primary school mathematics teaching instrument arithmetic counting addition， subtraction， multiplication and division algorithm demonstration
CN ¥ 16
qinghua science and education instrument teaching aids supplies activity calendar （for demonstration）
CN ¥ 16
moon phases demonstrator junior high school geography experimental apparatus science and education instrument moon evolution
CN ¥ 105
motor toys small motor miniature junior high school physics electrical science and education instrument experimental apparatus students
CN ¥ 10
liquid internal pressure tester junior and senior high school physics science and education instrument teaching demonstration
CN ¥ 9.9
resistance ring 5 euro 10 euro 15 ohm fixed value resistance junior and senior high school physics experiment science and education instrument
CN ¥ 14
lifting platform junior and senior high school physics experiment science and education instrument teaching demonstration experimental apparatus
CN ¥ 65
inertia demonstrator trajectory experiment of physical force newton‘s law of junior high school and senior high school
CN ¥ 13
color transparent film experimental effect of physical light in primary and secondary schools teaching demonstration science and education instrument
CN ¥ 5
round area ratio calculation formula derivation demonstration model primary school number academic science and education instrument
CN ¥ 23
demonstration abacus primary school junior high school mathematics wooden abacus 7 lines 17 files science and education instrument teacher teaching
CN ¥ 85
qinghua science and education geometry shape primary school mathematics teaching aids science and education instrument area volume calculation large quantity price can be discussed
CN ¥ 8
plastic connecting chain primary school mathematics counting probability method teaching aid toys children‘s game
CN ¥ 5.9
Qinghua Elementary School Mathematics Teaching Instrument Digital Demonstration Abacus Mental Abacus Formula Wooden Abacus 17 Grade Teaching Aids
CN ¥ 69
new electronic mobile phone usb digital magnifying glass microscope universal special whiteboard lifting bracket
CN ¥ 30
metal groove code mechanics measuring instrument junior and senior high school physics teaching experimental equipment teaching instrument
CN ¥ 30
plastic washing bottle junior and senior high school chemical experiment science and education instrument 250ml red bottle head cleaning bottle
CN ¥ 3
calorimeter measuring specific heat and electrothermal equivalent of objects middle school experimental physics teaching equipment
CN ¥ 25
primary school mathematics plastic color ball count children‘s ocean ball toy science and education instrument
CN ¥ 6.5
resistance law demonstrator junior and senior high school physics experiment equipment science and education instrument teaching demonstration
CN ¥ 49
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