Usages of la substance
Le noyau est entouré d'une substance bizarre.
The nucleus is surrounded by a weird substance.
La paroi est tapissée de cette substance.
The wall is lined with this substance.
Elles sont toutes composées d'une substance chimique.
They are all composed of a chemical substance.
Le noyau est revêtu d'une substance inconnue.
The nucleus is coated with an unknown substance.
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