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Everythin345Archies™Vacuum Hood Suction Disc Bell In Vacuum Laboratory Plastic Jar Sound Physics Scientific Experimental Tool

$79.99 USD$137.79 USD

Brand New And High Quality.
Sound Propagation Experiment:The Bell On The Bell With A Bell Above The Sound Of The Bell,Bells Can Still Hear A Clear Electric Bell,And Then Extract The Air Bell,Electric Bells Will Gradually Weaken Until The Sound Can Not Hear,Close The Exhaust Valve,So That Students Observe,Bell Bell Hammer Is Still Kept Ringing Bell,But Can Not Hear The Sound.
Low-Pressure Boiling Test:A Cup Of Hot Water Has Discharged Boiling Into The Bell Jar,And Then Pumping,You Can See The Cup Of Hot Water And Boiling Up.
The Instrument Can Also Be Used:Vacuum Fountain,Evaporation Icing,Vacuum Coating,Atmospheric Pressure And Other Experiments.
Note:You Need A Vacuum Pump To Do The Experiment.
Color:As Shown
Package Include:
1PCS X Vacuum Hood Suction Disc (Batteries Not Included)
1. Please Allow 1-3 CM Error Due To Manual Measurement.
2. As Different Computers Display Colors Differently, The Color Of The Actual Item May Vary Slightly From The Above Images, Thanks For Your Understanding.

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