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Cylindrical dynamometer 1N Newton meter Middle school physical mechanics experimental equipment teaching instrument

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7.60

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4.99

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8.49

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9.70

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15.49

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20.00

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10.49

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10.89

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2.14

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8.49

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14.89

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$7.5

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103.00

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3.32

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10.20

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13.49

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62.31

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2.34

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physical experiment equipment Magnetic induction board demonstration board junior high school physics teaching experimental

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17.76

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2.00

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6.43

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7.49

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8.49

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10.49

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11.49

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12.49

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14.89

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10.80

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8.00

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physical experiment equipment Electric Bell Model Physics and Electromagnetics Experimental Equipment Teaching Demonstration

$12.24

12.88

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Cylinder dynamometer junior high school physical mechanics experimental instrument tension meter spring scale 1N5N Newton

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4.40

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58.49

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8.49

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14.89

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7.04

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11.49

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25.89

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88.12

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77.07

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9.19

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122.21

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109.82

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$8.36

8.80

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👍: 0.0%

Light propagation reflection and refraction experimenter physical optics experimental equipment teaching instrument

$8.74

9.20

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Pressure and pressure demonstrator Physics and mechanics experimental equipment Student teaching instrument

$4.65

4.89

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21.49

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4.60

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13.89

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66.44

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17.49

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11.11

$Light reflection and refraction demonstrator foldable total reflection physical optics experimental equipment instrument$

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21.89

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7.49

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6.32

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11.21

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4.99

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$6.84

7.20

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6.59

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10.89

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33.49

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4.20

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15.49

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$11.87

12.49