TERMIUM Plus®

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OVERRIDING FACTOR [3 records]

Record 1 2004-06-02

English

Subject field(s)
  • Mineralogy
  • Economic Geology
  • Metals Mining
DEF

Any mineral having a commercial value.

CONT

In the geological and mining sense, economic minerals are defined as naturally occurring substances which can be extracted at a profit, although in some countries profitability may not be recognized as an overriding factor, and in such cases extraction is usually undertaken instead at the lowest possible cost.

CONT

Of the three classes of economic minerals (metallic minerals, mineral fuels, and industrial minerals), metallic minerals are those that may be used as a source of one or more metals.

CONT

Palabora ... produces uranium, thorium, zirconia and magnetite, whilst the ultramafic rocks of the complex contain economic deposits of apatite and vermiculite. Other economic minerals in carbonatites include fluorite, baryte and strontianite ...

French

Domaine(s)
  • Minéralogie
  • Géologie économique
  • Mines métalliques

Spanish

Save record 1

Record 2 2001-09-20

English

Subject field(s)
  • General Mechanics (Physics)
  • Aircraft Piloting and Navigation
  • Navigation Instruments
  • Flight Instruments and Equipment (Aeroindustry)
CONT

The ability to manufacture precision gyroscopic instruments which are sufficiently free of unpredictable drift is the ultimate limiting factor in the performance of inertial navigation technology. Gyro drift... is the overriding performance concern and it is caused by parasitic precessional torques which are outside the system mechanization loops.

French

Domaine(s)
  • Mécanique générale (Physique)
  • Pilotage et navigation aérienne
  • Instruments de navigation
  • Instruments et équipement de bord (Constructions aéronautiques)
CONT

[...] les couples parasites [sont] source de dérives des gyroscopes. On a donc essayé de réduire au maximum les résistances passives dans les articulations en supprimant les contacts à frottement solide.

PHR

Générer des couples parasites.

Spanish

Save record 2

Record 3 1986-12-12

English

Subject field(s)
  • Air Transport
OBS

167IDE.1-3.e

French

Domaine(s)
  • Transport aérien
OBS

instruction en vol (167IDF.1-3.f)

Spanish

Save record 3

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