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Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

An electrostatic microinstability due to a non-uniformity of the magnetic field.  2, record 1, English, - negative%20mass%20instability

Record number: 1, Textual support number: 1 OBS

If energy is fed into the azimuthal motion of a particle, it will be brought to an orbit of increasing diameter which has a longer period of revolution. Thus a force in the positive azimuthal direction produces a phase lag and azimuthal bunching of particles. The latter therefore behave as if they have negative mass, which produces a displacement in the opposite direction to an applied force.  2, record 1, English, - negative%20mass%20instability

Record number: 1, Textual support number: 2 OBS

Term standardized by ISO.  3, record 1, English, - negative%20mass%20instability

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Micro-instabilité électrostatique due à un manque d'uniformité du champ magnétique.  2, record 1, French, - instabilit%C3%A9%20de%20masse%20n%C3%A9gative

Record number: 1, Textual support number: 1 OBS

Si de l'énergie est fournie au mouvement azimutal d'une particule, le diamètre de son orbite va augmenter de même que sa période de révolution. Ainsi, une force dans la direction azimutale positive produit un retard de phase et un regroupement azimutal des particules. Ces dernières se comportent comme si leur masse était négative, produisant un déplacement dans la direction opposée à la force appliquée.  2, record 1, French, - instabilit%C3%A9%20de%20masse%20n%C3%A9gative

Record number: 1, Textual support number: 2 OBS

Terme normalisé par l'ISO.  3, record 1, French, - instabilit%C3%A9%20de%20masse%20n%C3%A9gative

Record 1,  Textual support,  Spanish