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1 compression
compression [kəm'preʃən](a) (of material) compression f;∎ Technology in compression comprimé►► Technology compression chamber chambre f de compression;Cars compression ignition allumage m par compression;compression period période f de compression;compression pump pompe f de compression;Technology compression ratio taux m de compression;Technology compression stroke (in engine) (temps m de) compression fUn panorama unique de l'anglais et du français > compression
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2 spark
spark [spɑ:k](a) (produce sparks → gen) jeter des étincelles3 noun(a) (from flame, electricity) étincelle f;∎ figurative whenever they meet the sparks fly chaque fois qu'ils se rencontrent, ça fait des étincelles;∎ they strike sparks off each other ils se stimulent mutuellement∎ she hasn't a spark of common sense elle n'a pas le moindre bon sens;∎ his eyes retained a spark of life il restait une lueur de vie dans ses yeuxBritish familiar (electrician) électricien-(enne)□ mf; familiar old-fashioned Nautical & Aviation (radio operator) radio□ m►► Physics spark chamber chambre f à étincelles;Electricity spark coil bobine f d'allumage;Cars spark gap écartement m des électrodes;Cars spark plug bougie f;spark plug spanner clé f à bougie(trigger → interest, argument) susciter, provoquer;∎ the incident was the catalyst that sparked the revolution c'est l'incident qui a déclenché la révolution;∎ the news sparked off an intense debate la nouvelle déclencha un débat animé
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