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pump gas

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What makes neon signs glow? A 360° animation - Michael Lipman
Finally, they pumped the neon gas in and sealed off the electrodes.
physics
faire entrer du gaz à l’aide d’une pompe
Forcer l’entrée du gaz dans un récipient ou un espace clos à l’aide d’une pompe.
What makes neon signs glow? A 360° animation - Michael Lipman
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