第四届军事电子学国防产品展览会于1979年在西德的威斯巴登(Wiesbaden)举行。这次展览会展出的重点放在保密和防窃听等设备方面。世界各国共有106家公司参加展出,其中与保密机有关的产品近60项。由此可见,在未来的军事与民用通信事业中,保密机愈来愈显示出重要作用。下面将本届展览会展品中有关保密机与话音处理设备摘录如下,供参考。 The Fourth Military Electronics Defense Products Exhibition was held in Wiesbaden, West Germany in 1979. The exhibition will focus on confidentiality and anti-eavesdropping devices. A total of 106 companies from all over the world participated in the exhibition, including nearly 60 products related to security machines. It can thus be seen that in the future military and civilian communications undertakings, confidentiality machines are increasingly showing an important role. The excerpts of the confidential devices and voice processing equipment in the exhibition of this exhibition are as follows.