Home › Vocabulary › Technology and industry › Vacuum technology Practise this list
Ways to practise
From these 33 words, as many per round as you like — up to all of them: first what is due today, then new ones. First you choose, then you fill the gap, then you write it yourself. Mistakes come back again shortly.
More about this list La bride à vide is the vacuum flange, and the first word is one of the cleanest false friends the language has. La bride is not a « bride ». It is a bridle: the headgear and reins by which a horse is held, and the two are in fact the same Germanic word, which French borrowed from Middle High German while English kept the form it had inherited. « Bride » in the wedding sense is a different word altogether and has no French descendant at all; the woman at the wedding is la mariée . From the strap, French generalised in the direction of anything that holds a part in place: a loop of thread on a garment, a tie in a piece of lace, and finally the collar of metal bolted round a pipe end, which is where this list finds it. English did not follow and reached instead for « flange », whose own origin is obscure. The figurative uses stayed with the horse on both sides of the Channel: lâcher la bride is to give free rein, and tenir la bride courte is to keep somebody on a short one.
The words
View Compact With examples
Noun (f) (17)
Grammar for these: Definite article: le, la, les · Indefinite article: un, une
la gamme de pression the pressure range Noun (f) C2 Chaque pompe couvre une gamme de pression étroite. Each pump covers a narrow pressure range.
la vitesse de pompage the pumping speed Noun (f) C2 La vitesse de pompage chute quand le tuyau est long. Pumping speed drops when the pipe is long.
la conductance the conductance Noun (f) C2 La conductance d’un tube étroit limite tout le système. The conductance of a narrow tube limits the whole system.
la pompe à palettes the rotary vane pump Noun (f) C2 La pompe à palettes fonctionne avec de l’huile. The rotary vane pump runs on oil.
la pompe à spirale the scroll pump Noun (f) C2 La pompe à spirale évite toute trace d’huile. The scroll pump avoids any trace of oil.
la pompe turbomoléculaire the turbomolecular pump Noun (f) C2 La pompe turbomoléculaire tourne très vite. The turbomolecular pump spins very fast.
la pompe primaire the backing pump Noun (f) C2 La pompe primaire soutient la turbine placée en aval. The backing pump supports the turbine placed downstream of it.
la cryopompe the cryopump Noun (f) C2 La cryopompe piège les gaz par le froid. The cryopump traps the gases by cold.
la fuite virtuelle the virtual leak Noun (f) C2 Une fuite virtuelle vient d’une poche de gaz enfermée. A virtual leak comes from a trapped pocket of gas.
la fuite réelle the real leak Noun (f) C2 Une fuite réelle laisse entrer l’air du dehors. A real leak lets in air from outside.
la jauge de vide the vacuum gauge Noun (f) C2 La jauge de vide se salit avec le temps. The vacuum gauge gets dirty with time.
la jauge à ionisation the ionisation gauge Noun (f) C2 La jauge à ionisation ne sert qu’aux basses pressions. The ionisation gauge is of use only at low pressures.
la bride à vide the vacuum flange Noun (f) C2 La bride à vide se serre en croix. The vacuum flange is tightened crosswise.
la remise à l’air the venting Noun (f) C2 La remise à l’air se fait avec un gaz sec. Venting is done with a dry gas.
la manipulation gantée the gloved handling Noun (f) C2 La manipulation gantée évite les traces de doigts. Gloved handling avoids fingerprints.
la propreté des pièces the cleanliness of the parts Noun (f) C2 La propreté des pièces décide de la pression limite. The cleanliness of the parts decides the ultimate pressure.
la pression limite the ultimate pressure Noun (f) C2 La pression limite est atteinte après plusieurs jours. The ultimate pressure is reached after several days.
Noun (m) (16)
Grammar for these: Definite article: le, la, les · Indefinite article: un, une
le vide primaire the rough vacuum Noun (m) C2 Le vide primaire est atteint en quelques minutes. Rough vacuum is reached in a few minutes.
le vide secondaire the high vacuum Noun (m) C2 Le vide secondaire commence là où la pompe à palettes s’arrête. High vacuum begins where the rotary vane pump gives up.
l’ultravide the ultra-high vacuum Noun (m) C2 L’ultravide demande des jours d’étuvage. Ultra-high vacuum takes days of baking out.
le libre parcours moyen the mean free path Noun (m) C2 Le libre parcours moyen dépasse alors la taille de l’enceinte. The mean free path then exceeds the size of the chamber.
le régime moléculaire the molecular flow regime Noun (m) C2 En régime moléculaire, les molécules ne se rencontrent presque plus. In molecular flow the molecules hardly meet one another any more.
le getter the getter Noun (m) C2 Le getter fixe le reste de gaz. The getter binds the gas that is left.
le dégagement gazeux the outgassing Noun (m) C2 Le dégagement gazeux des parois ne s’arrête jamais tout à fait. Outgassing from the walls never quite stops.
l’étuvage the bake-out Noun (m) C2 L’étuvage chasse l’eau collée aux parois. The bake-out drives off the water clinging to the walls.
le test de fuite à l’hélium the helium leak test Noun (m) C2 Le test de fuite à l’hélium trouve ce que l’oreille ne trouve pas. The helium leak test finds what the ear cannot.
le débit de fuite the leak rate Noun (m) C2 Le débit de fuite se mesure, il ne s’estime pas. The leak rate is measured, not estimated.
l’essai de remontée de pression the pressure rise test Noun (m) C2 L’essai de remontée de pression se fait pompe fermée. The pressure rise test is done with the pump shut off.
le joint en cuivre the copper gasket Noun (m) C2 Le joint en cuivre ne sert qu’une fois. The copper gasket serves once and no more.
le joint en élastomère the elastomer seal Noun (m) C2 Le joint en élastomère supporte mal l’étuvage. The elastomer seal stands up badly to a bake-out.
le passage étanche the vacuum feedthrough Noun (m) C2 Le passage étanche fait entrer un câble sans faire entrer l’air. The vacuum feedthrough brings a cable in without bringing air in.
le sas de chargement the load lock Noun (m) C2 Le sas de chargement évite de casser le vide. The load lock avoids breaking the vacuum.
le risque d’implosion the risk of implosion Noun (m) C2 Le risque d’implosion concerne surtout le verre. The risk of implosion concerns glass above all.
Back to the quiz ↑
Missing a word? Look it up in the dictionary
This list belongs to Technology and industry — 59 lists and 1 940 words that can also be practised as a whole.
Hear and recognise these words in the listening trainer
The quiz needs JavaScript. Everything above works without it.
← Spaceflight Harbour and marine works → 