TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Mineral dust appears a promising source of sublimation nuclei. Dust produced by the disintegration of rocks and blown to fairly high levels is a probable source of supply. Sand from desert regions is another possibility. It is likely that both the mineral dust and the sand contain suitable minerals, such as quartz, which have a hexagonal crystal structure.  5, record 1, English, - mineral%20dust

Record number: 1, Textual support number: 2 CONT

Suspended solids are largely composed of fine mineral particles (silt, clay and colloids) together with varying amounts of animal or plant debris, depending on the season.  3, record 1, English, - mineral%20dust

Record number: 1, Textual support number: 1 OBS

mineral: An inorganic substance.  6, record 1, English, - mineral%20dust

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Les particules minérales, comme celles du fer ou du vanadium et d'une façon générale des métaux de transition, catalysent les réactions d'oxydation et d'hydrolyse de l'anhydride sulfureux en acide sulfurique, et ce, notamment, en milieu humide. Les particules organiques peuvent se retrouver dans l'air en grande quantité.  1, record 1, French, - particule%20min%C3%A9rale

Record number: 1, Textual support number: 1 OBS

Le terme «poussière» est généralement synonyme de «particule». Dans un sens plus spécifique, il désigne aussi : une particule solide supérieure à un micron. «Substance minérale», dans un contexte chimique, s'emploie par opposition à «substance organique».  2, record 1, French, - particule%20min%C3%A9rale

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 OBS

Alkali Anions. Preparation and Crystal Structure of a compound Which Contains the Cryptated Sodium Cation and the Sodium Anion.... When a saturated solution of sodium metal in ethylamine in the presence of a cation-complexing bicyclic diamino ether("crypt") is cooled, crystals of [a stoichiometric sodium compound] form as thin hexagonal plates.... One of the sodium species is trapped in "crypt" and the other is outside.  2, record 2, English, - cryptate

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Retenir sélectivement des ions alcalins et alcalino-terreux.  2, record 2, French, - crypter

Record number: 2, Textual support number: 1 CONT

Chaque cage moléculaire peut être adaptée à la taille de l'ion à «crypter» : tel cryptate qui retiendra parfaitement le potassium, ne retiendra ni le lithium (trop petit) ni le césium (trop gros).  3, record 2, French, - crypter

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

One of the many geometrical forms in which ice crystals are found in the atmosphere.  2, record 3, English, - hexagonal%20column

Record number: 3, Textual support number: 1 CONT

The dominant snow crystal illustrated... is a hexagonal plate with six radiating arms. However, associated with the surface of the central plate and extending into the arms are numerous spherical "droplets". These particles, which are about 0. 03 to 0. 05 mm in diameter, are consistent with the descriptions of cloud particles or supercooled water droplets that have been described in light microscopic examinations of snow crystals(Bentley and Humphreys, 1931; Nakaya, 1954). The radiating arms contain another type of surface structure, namely small microcrystals that consist of short hexagonal columns most of which are only 0. 05 to 0. 10 mm in diameter. Some of these structures appear to be transitional stages that arise from the droplets.  3, record 3, English, - hexagonal%20column

Record number: 3, Textual support number: 1 OBS

Snowflakes can be described by their geometric shapes, or variations of them, such as prismatic column, hexagonal plate, cup, hexagonal column, needle, flat plate, and dendrite.  4, record 3, English, - hexagonal%20column

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Il est essentiel qu'il y ait des cirrus ou des cirrostratus, car c'est grâce à eux que sont formés les halos. Ces nuages élevés sont formés de cristaux de glace circulant uniquement dans les plus hautes couches de la troposphère. Le phénomène des halos est causé par la réfraction et la réflexion de la lumière sur ces minuscules cristaux de glace. [...] Le halo résulte de la chute désordonnée de colonnes hexagonales, mais seules les colonnes orientées correctement à tout moment arriveront à créer les halos.  1, record 3, French, - colonne%20hexagonale

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

From a technical point of view presents the Titanium, at temperatures less than 882°C, a compact hexagonal crystal structure(alpha Titanium) with a melting point much higher in 1660°C.  1, record 4, English, - hexagonal%20crystal%20structure

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Dès que la proportion d'étain formée atteint 2 %, il apparaît une nouvelle phase de structure cristallographique hexagonale compacte (hc) moins dense qui contribue à amplifier le gonflement.  1, record 4, French, - structure%20cristallographique%20hexagonale

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

hexagonal closed-packed structure : close-packed crystal structure characterized by the regular alternation of two layers; the atoms in each layer lie at the vertices of a series of equilateral triangles, and the atoms in one layer lie directly above the centers of the triangles in neighboring layers.  2, record 5, English, - hexagonal%20close%2Dpacked

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish