(objet round) ball. une boule de cristal a crystal ball. roulÃ© en boule curled up in a ball. (pour jouer) bowl. jouer aux boules to play bowls. * se mettre en boule to fly off the handle, to blow one's top. perdre la boule to go off one's rocker *. boule de gomme. nf (=bonbon) gum.
Communications security is the discipline of preventing unauthorized interceptors from accessing telecommunications in an intelligible form, while still delivering content to the intended recipients. In the United States Department of Defense culture, it is often referred to by the abbreviation COMSEC. The field includes cryptographic security, transmission security, emissions security and physical security of COMSEC equipment and associated keying material. COMSEC is used to protect both classified and unclassified traffic on military communications networks, including voice, video, and data.
Viscose is defined by BISFA as being a cellulose fibre obtained by the viscose process. It is known as rayon fibre in the USA. Although several cellulosic fibres had been made experimentally during the 19th century, it was not until 1905 that what has become the most popular cellulosic fibre, viscose, was produced.here are several fibres made from the naturally occurring polymer cellulose, which is present in all plants. Mostly cellulose from wood is used to produce the fibres but sometimes cellulose from short cotton fibres, called linters, is the source. By far the most common cellulosic fibre is viscose fibre.