translate English to French: In Europe, no doubt, in Russia, under work experience arrangements, which had only provided a little additional training, whereas in fact the staff in question had not even received the requisite theoretical training, so that such practical experience had sometimes been worse than useless.
En Europe, sans doute, en Russie, lors de stages qui ne pouvaient apporter qu’un complément de formation, alors que les stagiaires n’avaient pas reçu la formation théorique nécessaire, de sorte que cette formation pouvait conduire à une déformation.