Je was op zoek naar: indispensible (Frans - Engels)

moreover a broad supply of well-educated engineers and blue-collar workers is an indispensible prerequisite.
to obtain indicators for this, the machine exports of the important supplier countries were additionally adjusted in price and then calculated at constant rates of exchange for the year 1986.

the final section briefly discusses the origins of the united nations and of two indispensible documents: the un charter and the universal declaration of human rights.
the final section briefly discusses the origins of the united nations and of two indispensible documents: the un charter and the universal declaration of human rights.

dans le cas d'un filet formé de fils non élastiques et mêmes rigides, ces moyens d'accrochage deviennent essentiels pour assurer l'élasticité indispensible du système de renvoi.
in the case of a net made of non-elastic strings, or already rigid, the fastening means become essential to assure the necessary elasticity.

de plus, un rafraíchissement de l'électrode-outil en cours d'usinage devient indispensible en fraisage edm, car cette technique s'accompagne d'une certaine usure de cet outil, le fraisage edm étant en général conduit à grande vitesse, c'est-à-dire en réglant le régime d'usinage de façon à avoir un enlèvement de matière maximum.
furthermore, the refreshment of the tool-electrode during machining has become essential in edm milling, as this technique produces a certain amount of wear on the tool--edm milling is usually carried out at high speed, i.e. by adjusting the machining speed in order to obtain a maximum amount of material removal.