French translation for "vacuum flask"

un thermos

Example Sentences:

	1.	It is often necessary to maintain the Büchner flask and, incidentally, the vacuum flask. Il est souvent nécessaire de maintenir la fiole à vide et, accessoirement, le flacon de garde.
	2.	He is best known for his invention of the vacuum flask, which he used in conjunction with research into the liquefaction of gases. Il est aujourd'hui essentiellement connu pour son invention du vase Dewar, qu'il a utilisé dans ses recherches sur la liquéfaction des gaz.
	3.	If it is also necessary to maintain the vacuum flask we use either a mandible clamp, or a three-pronged clamp, depending on the apparatus and its stability. S'il est aussi nécessaire de maintenir le flacon de garde on utilise soit une pince mâchoire, soit une pince trois-doigts, selon le montage et sa stabilité.
	4.	There is therefore a difference in pressure between the exterior and the interior of the flasks : the contents of the Büchner funnel are sucked towards the vacuum flask. Ainsi il y a une différence de pression entre l'extérieur et l'intérieur des fioles : le contenu de l'entonnoir Büchner est aspiré vers la fiole à vide.

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