translate English to French: Furthermore, the relatively short term of office of the appointees to the tribunals (from three to five years on average) undermines the effectiveness of their language training as a means of allowing the institution in which they serve to acquire an acceptable level of bilingual capability.
Par ailleurs, le mandat relativement court des membres de la plupart des tribunaux fédéraux (soit de 3 à 5 ans en moyenne) mine l'efficacité de la formation linguistique comme un moyen efficace pour atteindre un niveau acceptable de bilinguisme institutionnel.