Etude des aspects thermiques et métallurgiques de la coupe orthogonale d'un acier au carbone
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A world language is spoken internationally and is learned and spoken by a large number of people as a second language. A world language is characterized not only by the total number of speakers, but also by its geographical distribution, as well as use in international organizations and diplomatic relations
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A world language is spoken internationally and is learned and spoken by numerous people as a second language. A world language is characterized not only by the total number of speakers, but also by its geographical distribution, as well as use in international organizations and diplomatic relations
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