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Lettris
Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
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English dictionary
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Most English definitions are provided by WordNet .
English thesaurus is mainly derived from The Integral Dictionary (TID).
English Encyclopedia is licensed by Wikipedia (GNU).
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H.T. (Sigle)
haute tension (n. f.)
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Cet article ne cite pas suffisamment ses sources (juin 2012).
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La haute tension est un terme qui caractérise, selon des normes européennes, les valeurs de la tension électrique supérieures à 1 000 volts en courant alternatif et 1 500 volts en courant continu[1].
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En France, on distingue deux catégories de hautes tensions :
Bien qu'ils ne soient pas normalisés, on utilise également couramment les termes :
L'appellation très haute tension (THT) est quant à elle une ancienne dénomination de la classe des tensions utilisées pour le transport longue distance de l'électricité, qui concernait les tensions supérieures à 100 000 volts.