TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

Artificial boundaries are ... created by humans, often without taking into account the natural features of the land or the cultural and ethnic divisions of the people living in the area. These boundaries can be created for a variety of reasons, such as to separate different countries, to control resources, or to establish administrative regions. They are often established through treaties, agreements, or unilateral decisions by governing bodies.  3, fiche 1, Anglais, - artificial%20boundary

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 DEF

Démarcation choisie conventionnellement, dont les bornes ne sont pas naturelles.  2, fiche 1, Français, - fronti%C3%A8re%20artificielle

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

The border between Canada and United States.  2, fiche 2, Anglais, - the%20Great%20Border

Record number: 2, Textual support number: 1 CONT

Today in North America the Great Border sometimes appears artificial and contrived to those who cross it daily.  3, fiche 2, Anglais, - the%20Great%20Border

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Frontière située entre le Canada et les États-Unis.  2, fiche 2, Français, - la%20Grande%20fronti%C3%A8re

Fiche 2,  Justifications,  Espagnol

Record number: 2, Textual support number: 1 OBS

En español, las fuentes hacen referencia con este nombre a la frontera que separa Estados Unidos de México.  1, fiche 2, Espagnol, - la%20gran%20frontera

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 DEF

An inert light gas, He, which is odorless, colorless, and not flammable.  2, fiche 3, Anglais, - helium

Record number: 3, Textual support number: 1 CONT

Helium is extracted from natural gas sources in the Texas and Oklahoma ... and Southwest Kansas ... The element is believed to be trapped in the natural gas pockets after disintegration from uranium and thorium.  3, fiche 3, Anglais, - helium

Record number: 3, Textual support number: 2 CONT

... uses for helium[ :] filling party balloons as it is a much safer gas(non-flammable) ;widely used as an inert gas shield for arc welding; high speed push gas inside air to air missiles for guidance corrections; protective gas in growing silicon and germanium crystals, and in titanium and zirconium production; cooling medium for nuclear reactors, helium won’t become radioactive; a mixture of 80% helium and 20% oxygen is used as an artificial atmosphere for divers and others working under pressure; cryogenics and superconductivity; rare document preservation... Independence) ;as a gas for supersonic wind tunnels; pressurizing agent for liquid fuel rockets(inert so won’t react) ;leak detection agent for extremely small leaks; nuclear detonation simulations(using conventional explosives) ;isotopic dating by helium ratios(seawater, ocean beds, etc) ;helium/neon lasers; helium cardio-pulmonary resuscitation pump(heart surgery) ;helium filled border patrol "AEROSTAT" monitoring blimps.  4, fiche 3, Anglais, - helium

Record number: 3, Textual support number: 1 OBS

Helium has an atomic number of 2, an atomic weight of 4, density of 0.1785 kg/m³ at STP. Helium can be liquefied at 4.2 K (-269°C).  2, fiche 3, Anglais, - helium

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 DEF

Gaz rare le plus léger.  2, fiche 3, Français, - h%C3%A9lium

Record number: 3, Textual support number: 1 OBS

(Élément de symbole He). Numéro atomique : 2. Masse atomique : 4,0026. Température de fusion : -269,7 °C. Température d'ébullition : -268,934 °C. Masse volumique : 0,126 g/cm³. État d'oxydation : 0.  2, fiche 3, Français, - h%C3%A9lium

Record number: 3, Textual support number: 2 OBS

Gaz rare utilisé en mélange pour la plongée profonde.  3, fiche 3, Français, - h%C3%A9lium

Fiche 3,  Justifications,  Espagnol